diff --git a/Changelog.md b/Changelog.md
deleted file mode 100644
index 47bf1b0..0000000
--- a/Changelog.md
+++ /dev/null
@@ -1,39 +0,0 @@
-Changelog
-=========
-
-####v0.3.0
-
-* Расширена библиотека клиента
-* Добавлена возможность кастомизации моделей заказа через vqmod
-* Устранены мелкие баги, проведен рефакторинг кода.
-
-
-####v0.2.0
-
-Общие изменения
-
-* Код приведен в состоянии совместимости с PHP 5.2
-* Убрана необходимость собирать пакет через composer
-* Библиотека api-client-php обновлена до последней версии и добавлена в стандартную поставку
-* Переименованы методы, пути и значения ключей конфигурации в связи с ребрендингом
-* Временая метка последнего запуска получения истории перенесена в таблицу конфигурации БД
-
-Выгрузка каталога (ICML)
-
-* Генерация обновлена в соответствии с последними измениями формата файла выгрузки
-* Генерация вынесена в отдельный класс
-* Добавлена возможность добавлять подкатегории
-* Скорректировано указание активности офера
-* Убрана генерация размера офера вследствие кастомизации этого параметра в разных магазинах
-
-####v0.1.1
-* Устранена ошибка редактирования, при которой терялась часть данных при получении истории из CRM
-* Оптимизирован код получения и обработки истории заказов
-* Актуализированы переводы
-
-####v.0.1
-* Реализован интерфейс настроек модуля
-* Реализована отправка данных о заказе/клиенте в CRM
-* Реализована выгрузка каталога (cron only)
-* Реализовано получение данных о заказах, сделанных на стороне CRM (cron only)
-
diff --git a/README.md b/README.md
index efa3e3e..417fc0e 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,13 @@
 Opencart module
 ===============
 
-Module allows integrate CMS Opencart 2.x with [retailCRM](http://retailcrm.pro)
+Module allows integrate CMS Opencart >= 2.3 with [retailCRM](http://retailcrm.pro)
+
+### Previous versions:
+
+[v1.x](https://github.com/retailcrm/opencart-module/tree/v1.x)
+
+[v2.x (2.0, 2.1, 2.2)](https://github.com/retailcrm/opencart-module/tree/v2.2)
 
 #### Features:
 
diff --git a/README.ru.md b/README.ru.md
index 44bc3ef..0e5d119 100644
--- a/README.ru.md
+++ b/README.ru.md
@@ -1,7 +1,13 @@
 Opencart module
 ===============
 
-Модуль интеграции CMS Openacart 2.x c [RetailCRM](http://retailcrm.ru)
+Модуль интеграции CMS Opencart >= 2.3 c [RetailCRM](http://retailcrm.ru)
+
+### Предыдущие версии:
+
+[v1.x](https://github.com/retailcrm/opencart-module/tree/v1.x)
+
+[v2.x (2.0, 2.1, 2.2)](https://github.com/retailcrm/opencart-module/tree/v2.2)
 
 #### Модуль позволяет:
 
diff --git a/admin/controller/module/retailcrm.php b/admin/controller/extension/module/retailcrm.php
similarity index 73%
rename from admin/controller/module/retailcrm.php
rename to admin/controller/extension/module/retailcrm.php
index 3daf847..fc5500f 100644
--- a/admin/controller/module/retailcrm.php
+++ b/admin/controller/extension/module/retailcrm.php
@@ -11,7 +11,7 @@ require_once DIR_SYSTEM . 'library/retailcrm/bootstrap.php';
  * @license  https://opensource.org/licenses/MIT MIT License
  * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion3
  */
-class ControllerModuleRetailcrm extends Controller
+class ControllerExtensionModuleRetailcrm extends Controller
 {
     private $_error = array();
     protected $log, $statuses, $payments, $deliveryTypes, $retailcrm;
@@ -33,22 +33,29 @@ class ControllerModuleRetailcrm extends Controller
         $this->model_extension_event
             ->addEvent(
                 'retailcrm',
-                version_compare(VERSION, '2.2', '>=') ? 'catalog/model/checkout/order/addOrder/after' : 'post.order.add',
-                'module/retailcrm/order_create'
+                'catalog/model/checkout/order/addOrder/after',
+                'extension/module/retailcrm/order_create'
             );
 
         $this->model_extension_event
             ->addEvent(
                 'retailcrm',
-                version_compare(VERSION, '2.2', '>=') ? 'catalog/model/checkout/order/addOrderHistory/after' : 'post.order.history.add',
-                'module/retailcrm/order_edit'
+                'catalog/model/checkout/order/addOrderHistory/after',
+                'extension/module/retailcrm/order_edit'
             );
 
         $this->model_extension_event
             ->addEvent(
                 'retailcrm',
-                version_compare(VERSION, '2.2', '>=') ? 'catalog/model/account/customer/addCustomer/after' : 'post.customer.add',
-                'module/retailcrm/customer_create'
+                'catalog/model/account/customer/addCustomer/after',
+                'extension/module/retailcrm/customer_create'
+            );
+
+        $this->model_extension_event
+            ->addEvent(
+                'retailcrm',
+                'catalog/model/checkout/order/editOrder/after',
+                'extension/module/retailcrm/order_edit'
             );
     }
 
@@ -77,12 +84,16 @@ class ControllerModuleRetailcrm extends Controller
 
         $this->load->model('setting/setting');
         $this->load->model('extension/module');
-        $this->load->model('retailcrm/references');
-        $this->load->language('module/retailcrm');
+        $this->load->model('extension/retailcrm/references');
+        $this->load->language('extension/module/retailcrm');
         $this->document->setTitle($this->language->get('heading_title'));
         $this->document->addStyle('/admin/view/stylesheet/retailcrm.css');
 
         if ($this->request->server['REQUEST_METHOD'] == 'POST' && $this->validate()) {
+            if (parse_url($this->request->post['retailcrm_url'])){
+                $crm_url = parse_url($this->request->post['retailcrm_url'], PHP_URL_HOST);
+                $this->request->post['retailcrm_url'] = 'https://'.$crm_url;
+            }
             $this->model_setting_setting->editSetting(
                 'retailcrm',
                 $this->request->post
@@ -90,7 +101,7 @@ class ControllerModuleRetailcrm extends Controller
 
             $this->session->data['success'] = $this->language->get('text_success');
             $redirect = $this->url->link(
-                'module/retailcrm', 'token=' . $this->session->data['token'],
+                'extension/module/retailcrm', 'token=' . $this->session->data['token'],
                 'SSL'
             );
 
@@ -137,14 +148,14 @@ class ControllerModuleRetailcrm extends Controller
             $this->retailcrm = new RetailcrmProxy(
                 $url,
                 $key,
-                DIR_SYSTEM . 'logs/retailcrm.log'
+                DIR_SYSTEM . 'storage/logs/retailcrm.log'
             );
 
-            $_data['delivery'] = $this->model_retailcrm_references
+            $_data['delivery'] = $this->model_extension_retailcrm_references
                 ->getDeliveryTypes();
-            $_data['statuses'] = $this->model_retailcrm_references
+            $_data['statuses'] = $this->model_extension_retailcrm_references
                 ->getOrderStatuses();
-            $_data['payments'] = $this->model_retailcrm_references
+            $_data['payments'] = $this->model_extension_retailcrm_references
                 ->getPaymentTypes();
 
         }
@@ -181,7 +192,7 @@ class ControllerModuleRetailcrm extends Controller
         $_data['breadcrumbs'][] = array(
             'text'      => $this->language->get('text_module'),
             'href'      => $this->url->link(
-                'extension/module',
+                'extension/extension/module',
                 'token=' . $this->session->data['token'], 'SSL'
             ),
             'separator' => ' :: '
@@ -190,19 +201,19 @@ class ControllerModuleRetailcrm extends Controller
         $_data['breadcrumbs'][] = array(
             'text'      => $this->language->get('retailcrm_title'),
             'href'      => $this->url->link(
-                'module/retailcrm',
+                'extension/module/retailcrm',
                 'token=' . $this->session->data['token'], 'SSL'
             ),
             'separator' => ' :: '
         );
 
         $_data['action'] = $this->url->link(
-            'module/retailcrm',
+            'extension/module/retailcrm',
             'token=' . $this->session->data['token'], 'SSL'
         );
 
         $_data['cancel'] = $this->url->link(
-            'extension/module',
+            'extension/extension',
             'token=' . $this->session->data['token'], 'SSL'
         );
 
@@ -222,7 +233,7 @@ class ControllerModuleRetailcrm extends Controller
         $_data['footer'] = $this->load->controller('common/footer');
 
         $this->response->setOutput(
-            $this->load->view('module/retailcrm.tpl', $_data)
+            $this->load->view('extension/module/retailcrm.tpl', $_data)
         );
     }
 
@@ -233,12 +244,12 @@ class ControllerModuleRetailcrm extends Controller
      */
     public function history()
     {
-        if (file_exists(DIR_APPLICATION . 'model/retailcrm/custom/history.php')) {
-            $this->load->model('retailcrm/custom/history');
-            $this->model_retailcrm_custom_history->request();
+        if (file_exists(DIR_APPLICATION . 'model/extension/retailcrm/custom/history.php')) {
+            $this->load->model('extension/retailcrm/custom/history');
+            $this->model_extension_retailcrm_custom_history->request();
         } else {
-            $this->load->model('retailcrm/history');
-            $this->model_retailcrm_history->request();
+            $this->load->model('extension/retailcrm/history');
+            $this->model_extension_retailcrm_history->request();
         }
     }
 
@@ -249,12 +260,12 @@ class ControllerModuleRetailcrm extends Controller
      */
     public function icml()
     {
-        if (file_exists(DIR_APPLICATION . 'model/retailcrm/custom/icml.php')) {
-            $this->load->model('retailcrm/custom/icml');
-            $this->model_retailcrm_custom_icml->generateICML();
+        if (file_exists(DIR_APPLICATION . 'model/extension/retailcrm/custom/icml.php')) {
+            $this->load->model('extension/retailcrm/custom/icml');
+            $this->model_extension_retailcrm_custom_icml->generateICML();
         } else {
-            $this->load->model('retailcrm/icml');
-            $this->model_retailcrm_icml->generateICML();
+            $this->load->model('extension/retailcrm/icml');
+            $this->model_extension_retailcrm_icml->generateICML();
         }
     }
 
@@ -278,8 +289,8 @@ class ControllerModuleRetailcrm extends Controller
             $status = $this->model_setting_setting->getSetting('retailcrm');
             $data['order_status'] = $status['retailcrm_status'][$data['order_status_id']];
 
-            $this->load->model('retailcrm/order');
-            $this->model_retailcrm_order->sendToCrm($data, $data['order_id']);
+            $this->load->model('extension/retailcrm/order');
+            $this->model_extension_retailcrm_order->sendToCrm($data, $data['order_id']);
         }
     }
 
@@ -289,16 +300,12 @@ class ControllerModuleRetailcrm extends Controller
      *
      */
     public function export() {
-        if(version_compare(VERSION, '2.1', '<')) {
-            $this->load->model('sale/customer');
-            $customers = $this->model_sale_customer->getCustomers();
-        } else {
-            $this->load->model('customer/customer');
-            $customers = $this->model_customer_customer->getCustomers();
-        }
+        
+        $this->load->model('customer/customer');
+        $customers = $this->model_customer_customer->getCustomers();
 
-        $this->load->model('retailcrm/customer');
-        $this->model_retailcrm_customer->uploadToCrm($customers);
+        $this->load->model('extension/retailcrm/customer');
+        $this->model_extension_retailcrm_customer->uploadToCrm($customers);
 
         $this->load->model('sale/order');
         $orders = $this->model_sale_order->getOrders();
@@ -317,8 +324,8 @@ class ControllerModuleRetailcrm extends Controller
             $fullOrders[] = $fullOrder;
         }
 
-        $this->load->model('retailcrm/order');
-        $this->model_retailcrm_order->uploadToCrm($fullOrders);
+        $this->load->model('extension/retailcrm/order');
+        $this->model_extension_retailcrm_order->uploadToCrm($fullOrders);
     }
 
     /**
@@ -328,7 +335,7 @@ class ControllerModuleRetailcrm extends Controller
      */
     private function validate()
     {
-        if (!$this->user->hasPermission('modify', 'module/retailcrm')) {
+        if (!$this->user->hasPermission('modify', 'extension/module/retailcrm')) {
             $this->_error['warning'] = $this->language->get('error_permission');
         }
 
diff --git a/admin/language/english/module/retailcrm.php b/admin/language/en-gb/extension/module/retailcrm.php
similarity index 100%
rename from admin/language/english/module/retailcrm.php
rename to admin/language/en-gb/extension/module/retailcrm.php
diff --git a/admin/language/russian/module/retailcrm.php b/admin/language/ru-ru/extension/module/retailcrm.php
similarity index 100%
rename from admin/language/russian/module/retailcrm.php
rename to admin/language/ru-ru/extension/module/retailcrm.php
diff --git a/admin/model/retailcrm/custom/.gitkeep b/admin/model/extension/retailcrm/custom/.gitkeep
similarity index 100%
rename from admin/model/retailcrm/custom/.gitkeep
rename to admin/model/extension/retailcrm/custom/.gitkeep
diff --git a/admin/model/retailcrm/customer.php b/admin/model/extension/retailcrm/customer.php
similarity index 92%
rename from admin/model/retailcrm/customer.php
rename to admin/model/extension/retailcrm/customer.php
index a18c6c8..ab17ee6 100644
--- a/admin/model/retailcrm/customer.php
+++ b/admin/model/extension/retailcrm/customer.php
@@ -1,6 +1,6 @@
 <?php
 
-class ModelRetailcrmCustomer extends Model {
+class ModelExtensionRetailcrmCustomer extends Model {
 
     public function uploadToCrm($customers) {
         $this->load->model('setting/setting');
@@ -16,7 +16,7 @@ class ModelRetailcrmCustomer extends Model {
         $this->retailcrmApi = new RetailcrmProxy(
             $settings['retailcrm_url'],
             $settings['retailcrm_apikey'],
-            DIR_SYSTEM . 'logs/retailcrm.log'
+            DIR_SYSTEM . 'storage/logs/retailcrm.log'
         );
 
         $customersToCrm = array();
diff --git a/admin/model/retailcrm/history.php b/admin/model/extension/retailcrm/history.php
similarity index 93%
rename from admin/model/retailcrm/history.php
rename to admin/model/extension/retailcrm/history.php
index b984635..eb19ffb 100644
--- a/admin/model/retailcrm/history.php
+++ b/admin/model/extension/retailcrm/history.php
@@ -1,6 +1,6 @@
 <?php
 
-class ModelRetailcrmHistory extends Model
+class ModelExtensionRetailcrmHistory extends Model
 {
     protected $createResult;
 
@@ -12,17 +12,13 @@ class ModelRetailcrmHistory extends Model
         $this->load->model('setting/store');
         $this->load->model('user/api');
         $this->load->model('sale/order');
-        if (version_compare(VERSION, '2.1.0.0', '>=')) {
-            $this->load->model('customer/customer');
-        } else {
-            $this->load->model('sale/customer');
-        }
-        $this->load->model('retailcrm/references');
+        $this->load->model('customer/customer');        
+        $this->load->model('extension/retailcrm/references');
         $this->load->model('catalog/product');
         $this->load->model('catalog/option');
         $this->load->model('localisation/zone');
 
-        $this->load->language('module/retailcrm');
+        $this->load->language('extension/module/retailcrm');
 
         $settings = $this->model_setting_setting->getSetting('retailcrm');
         $history = $this->model_setting_setting->getSetting('retailcrm_history');
@@ -41,7 +37,7 @@ class ModelRetailcrmHistory extends Model
         $crm = new RetailcrmProxy(
             $settings['retailcrm_url'],
             $settings['retailcrm_apikey'],
-            DIR_SYSTEM . 'logs/retailcrm.log'
+            DIR_SYSTEM . 'storage/logs/retailcrm.log'
         );
 
         $lastRun = !empty($history['retailcrm_history'])
@@ -65,10 +61,10 @@ class ModelRetailcrmHistory extends Model
         $this->payment = array_flip($settings['retailcrm_payment']);
         $this->status = array_flip($settings['retailcrm_status']);
 
-        $this->ocPayment = $this->model_retailcrm_references
+        $this->ocPayment = $this->model_extension_retailcrm_references
             ->getOpercartPaymentTypes();
 
-        $this->ocDelivery = $this->model_retailcrm_references
+        $this->ocDelivery = $this->model_extension_retailcrm_references
             ->getOpercartDeliveryTypes();
 
         $this->zones = $this->model_localisation_zone->getZones();
@@ -314,25 +310,14 @@ class ModelRetailcrmHistory extends Model
                     ),
                 );
 
-                if (version_compare(VERSION, '2.1.0.0', '>=')) {
-                    $this->model_customer_customer->addCustomer($cData);
-                } else {
-                    $this->model_sale_customer->addCustomer($cData);
-                }
-
+                
+                $this->model_customer_customer->addCustomer($cData);
+                
                 if (!empty($order['email'])) {
-                    if (version_compare(VERSION, '2.1.0.0', '>=')) {
-                        $tryToFind = $this->model_customer_customer->getCustomerByEmail($order['email']);
-                    } else {
-                        $tryToFind = $this->model_sale_customer->getCustomerByEmail($order['email']);
-                    }
+                    $tryToFind = $this->model_customer_customer->getCustomerByEmail($order['email']);
                     $customer_id = $tryToFind['customer_id'];
                 } else {
-                    if (version_compare(VERSION, '2.1.0.0', '>=')) {
-                        $last = $this->model_customer_customer->getCustomers($data = array('order' => 'DESC', 'limit' => 1));
-                    } else {
-                        $last = $this->model_sale_customer->getCustomers($data = array('order' => 'DESC', 'limit' => 1));
-                    }
+                    $last = $this->model_customer_customer->getCustomers($data = array('order' => 'DESC', 'limit' => 1));
                     $customer_id = $last[0]['customer_id'];
                 }
 
diff --git a/admin/model/retailcrm/icml.php b/admin/model/extension/retailcrm/icml.php
similarity index 95%
rename from admin/model/retailcrm/icml.php
rename to admin/model/extension/retailcrm/icml.php
index 2d6b5c5..f2f3d47 100644
--- a/admin/model/retailcrm/icml.php
+++ b/admin/model/extension/retailcrm/icml.php
@@ -1,6 +1,6 @@
 <?php
 
-class ModelRetailcrmIcml extends Model
+class ModelExtensionRetailcrmIcml extends Model
 {
     protected $shop;
     protected $file;
@@ -15,7 +15,7 @@ class ModelRetailcrmIcml extends Model
 
     public function generateICML()
     {
-        $this->load->language('module/retailcrm');
+        $this->load->language('extension/module/retailcrm');
         $this->load->model('catalog/category');
         $this->load->model('catalog/product');
         $this->load->model('catalog/option');
@@ -296,18 +296,17 @@ class ModelRetailcrmIcml extends Model
     private function generateImage($image)
     {
         $this->load->model('tool/image');
+ 
+        $currentTheme = $this->config->get('config_theme');
+        $width = $this->config->get($currentTheme . '_image_related_width') ? $this->config->get($currentTheme . '_image_related_width') : 200;
+        $height = $this->config->get($currentTheme . '_image_related_height') ? $this->config->get($currentTheme . '_image_related_height') : 200;
 
-        if (version_compare(VERSION, '2.2', '>=')) {
-            $currentTheme = $this->config->get('config_theme');
-            $width = $this->config->get($currentTheme . '_image_related_width') ? $this->config->get($currentTheme . '_image_related_width') : 200;
-            $height = $this->config->get($currentTheme . '_image_related_height') ? $this->config->get($currentTheme . '_image_related_height') : 200;
+        return $this->model_tool_image->resize(
+            $image,
+            $width,
+            $height
+        );
 
-            return $this->model_tool_image->resize(
-                $image,
-                $width,
-                $height
-            );
-        }
 
         return $this->model_tool_image->resize(
             $image,
diff --git a/admin/model/retailcrm/order.php b/admin/model/extension/retailcrm/order.php
similarity index 98%
rename from admin/model/retailcrm/order.php
rename to admin/model/extension/retailcrm/order.php
index c9cd423..77fa54d 100644
--- a/admin/model/retailcrm/order.php
+++ b/admin/model/extension/retailcrm/order.php
@@ -1,6 +1,6 @@
 <?php
 
-class ModelRetailcrmOrder extends Model {
+class ModelExtensionRetailcrmOrder extends Model {
     public function uploadToCrm($orders) {
         $this->load->model('catalog/product');
 
diff --git a/admin/model/retailcrm/references.php b/admin/model/extension/retailcrm/references.php
similarity index 87%
rename from admin/model/retailcrm/references.php
rename to admin/model/extension/retailcrm/references.php
index b5aef36..b764c55 100644
--- a/admin/model/retailcrm/references.php
+++ b/admin/model/extension/retailcrm/references.php
@@ -2,7 +2,7 @@
 
 require_once DIR_SYSTEM . 'library/retailcrm/bootstrap.php';
 
-class ModelRetailcrmReferences extends Model
+class ModelExtensionRetailcrmReferences extends Model
 {
     protected $retailcrm;
 
@@ -33,13 +33,13 @@ class ModelRetailcrmReferences extends Model
     public function getOpercartDeliveryTypes()
     {
         $deliveryMethods = array();
-        $files = glob(DIR_APPLICATION . 'controller/shipping/*.php');
+        $files = glob(DIR_APPLICATION . 'controller/extension/shipping/*.php');
 
         if ($files) {
             foreach ($files as $file) {
                 $extension = basename($file, '.php');
 
-                $this->load->language('shipping/' . $extension);
+                $this->load->language('extension/shipping/' . $extension);
 
                 if ($this->config->get($extension . '_status')) {
                     $deliveryMethods[$extension.'.'.$extension] = strip_tags(
@@ -63,13 +63,13 @@ class ModelRetailcrmReferences extends Model
     public function getOpercartPaymentTypes()
     {
         $paymentTypes = array();
-        $files = glob(DIR_APPLICATION . 'controller/payment/*.php');
+        $files = glob(DIR_APPLICATION . 'controller/extension/payment/*.php');
 
         if ($files) {
             foreach ($files as $file) {
                 $extension = basename($file, '.php');
 
-                $this->load->language('payment/' . $extension);
+                $this->load->language('extension/payment/' . $extension);
 
                 if ($this->config->get($extension . '_status')) {
                     $paymentTypes[$extension] = strip_tags(
@@ -91,7 +91,7 @@ class ModelRetailcrmReferences extends Model
             $this->retailcrm = new RetailcrmProxy(
                 $settings['retailcrm_url'],
                 $settings['retailcrm_apikey'],
-                DIR_SYSTEM . 'logs/retailcrm.log'
+                DIR_SYSTEM . 'storage/logs/retailcrm.log'
             );
 
             $response = $this->retailcrm->deliveryTypesList();
@@ -109,7 +109,7 @@ class ModelRetailcrmReferences extends Model
             $this->retailcrm = new RetailcrmProxy(
                 $settings['retailcrm_url'],
                 $settings['retailcrm_apikey'],
-                DIR_SYSTEM . 'logs/retailcrm.log'
+                DIR_SYSTEM . 'storage/logs/retailcrm.log'
             );
 
             $response = $this->retailcrm->statusesList();
@@ -127,7 +127,7 @@ class ModelRetailcrmReferences extends Model
             $this->retailcrm = new RetailcrmProxy(
                 $settings['retailcrm_url'],
                 $settings['retailcrm_apikey'],
-                DIR_SYSTEM . 'logs/retailcrm.log'
+                DIR_SYSTEM . 'storage/logs/retailcrm.log'
             );
 
             $response = $this->retailcrm->paymentTypesList();
diff --git a/admin/view/template/module/retailcrm.tpl b/admin/view/template/extension/module/retailcrm.tpl
similarity index 100%
rename from admin/view/template/module/retailcrm.tpl
rename to admin/view/template/extension/module/retailcrm.tpl
diff --git a/catalog/controller/module/retailcrm.php b/catalog/controller/extension/module/retailcrm.php
similarity index 76%
rename from catalog/controller/module/retailcrm.php
rename to catalog/controller/extension/module/retailcrm.php
index 27a368f..7b8455d 100644
--- a/catalog/controller/module/retailcrm.php
+++ b/catalog/controller/extension/module/retailcrm.php
@@ -9,7 +9,7 @@
  * @license  https://opensource.org/licenses/MIT MIT License
  * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion3
  */
-class ControllerModuleRetailcrm extends Controller
+class ControllerExtensionModuleRetailcrm extends Controller
 {
     /**
      * Create order on event
@@ -18,15 +18,12 @@ class ControllerModuleRetailcrm extends Controller
      *
      * @return void
      */
-    public function order_create($parameter1, $parameter2 = null)
+    public function order_create($parameter1, $parameter2 = null, $parameter3 = null)
     {
         $this->load->model('checkout/order');
         $this->load->model('account/order');
 
-        if($parameter2 != null)
-            $order_id = $parameter2;
-        else
-            $order_id = $parameter1;
+        $order_id = $parameter3;
 
         $data = $this->model_checkout_order->getOrder($order_id);
 
@@ -50,16 +47,13 @@ class ControllerModuleRetailcrm extends Controller
                 'value' => $this->session->data['shipping_method']['cost']
             );
 
-            $this->load->model('retailcrm/order');
-            $this->model_retailcrm_order->sendToCrm($data, $data['order_id']);
+            $this->load->model('extension/retailcrm/order');
+            $this->model_extension_retailcrm_order->sendToCrm($data, $data['order_id']);
         }
     }
 
-    public function order_edit($parameter1, $parameter2 = null, $parameter3 = null, $parameter4 = null) {
-        if($parameter4 != null)
-            $order_id = $parameter3;
-        else
-            $order_id = $parameter1;
+    public function order_edit($parameter1, $parameter2 = null) {
+        $order_id = $parameter2[0];
 
         $this->load->model('checkout/order');
         $this->load->model('account/order');
@@ -90,8 +84,8 @@ class ControllerModuleRetailcrm extends Controller
                 'value' => isset($this->session->data['shipping_method']) ? $this->session->data['shipping_method']['cost'] : ''
             );
 
-            $this->load->model('retailcrm/order');
-            $this->model_retailcrm_order->changeInCrm($data, $data['order_id']);
+            $this->load->model('extension/retailcrm/order');
+            $this->model_extension_retailcrm_order->changeInCrm($data, $data['order_id']);
         }
     }
 
@@ -102,16 +96,13 @@ class ControllerModuleRetailcrm extends Controller
      *
      * @return void
      */
-    public function customer_create($parameter1, $parameter2 = null) {
-        if($parameter2 != null)
-            $customerId = $parameter2;
-        else
-            $customerId = $parameter1;
+    public function customer_create($parameter1, $parameter2 = null, $parameter3 = null) {
+        $customerId = $parameter3;
 
         $this->load->model('account/customer');
         $customer = $this->model_account_customer->getCustomer($customerId);
 
-        $this->load->model('retailcrm/customer');
-        $this->model_retailcrm_customer->sendToCrm($customer);
+        $this->load->model('extension/retailcrm/customer');
+        $this->model_extension_retailcrm_customer->sendToCrm($customer);
     }
 }
diff --git a/catalog/model/retailcrm/customer.php b/catalog/model/extension/retailcrm/customer.php
similarity index 91%
rename from catalog/model/retailcrm/customer.php
rename to catalog/model/extension/retailcrm/customer.php
index 093a109..1b1f768 100644
--- a/catalog/model/retailcrm/customer.php
+++ b/catalog/model/extension/retailcrm/customer.php
@@ -1,6 +1,6 @@
 <?php
 
-class ModelRetailcrmCustomer extends Model {
+class ModelExtensionRetailcrmCustomer extends Model {
     public function sendToCrm($customer) {
         $this->load->model('setting/setting');
         $settings = $this->model_setting_setting->getSetting('retailcrm');
@@ -15,7 +15,7 @@ class ModelRetailcrmCustomer extends Model {
         $this->retailcrmApi = new RetailcrmProxy(
             $settings['retailcrm_url'],
             $settings['retailcrm_apikey'],
-            DIR_SYSTEM . 'logs/retailcrm.log'
+            DIR_SYSTEM . 'storage/logs/retailcrm.log'
         );
 
         $customerToCrm = $this->process($customer);
diff --git a/catalog/model/retailcrm/order.php b/catalog/model/extension/retailcrm/order.php
similarity index 97%
rename from catalog/model/retailcrm/order.php
rename to catalog/model/extension/retailcrm/order.php
index f59f82d..873d2ff 100644
--- a/catalog/model/retailcrm/order.php
+++ b/catalog/model/extension/retailcrm/order.php
@@ -1,6 +1,6 @@
 <?php
 
-class ModelRetailcrmOrder extends Model {
+class ModelExtensionRetailcrmOrder extends Model {
 
     public function sendToCrm($order_data, $order_id)
     {
@@ -17,7 +17,7 @@ class ModelRetailcrmOrder extends Model {
             $this->retailcrm = new RetailcrmProxy(
                 $settings['retailcrm_url'],
                 $settings['retailcrm_apikey'],
-                DIR_SYSTEM . 'logs/retailcrm.log'
+                DIR_SYSTEM . 'storage/logs/retailcrm.log'
             );
 
             $order = array();
@@ -157,7 +157,7 @@ class ModelRetailcrmOrder extends Model {
             $this->retailcrm = new RetailcrmProxy(
                 $settings['retailcrm_url'],
                 $settings['retailcrm_apikey'],
-                DIR_SYSTEM . 'logs/retailcrm.log'
+                DIR_SYSTEM . 'storage/logs/retailcrm.log'
             );
 
             $order = array();
@@ -191,7 +191,6 @@ class ModelRetailcrmOrder extends Model {
 
             $order['delivery'] = array(
                 'code' => !empty($delivery_code) ? $settings['retailcrm_delivery'][$delivery_code] : '',
-                'cost' => $deliveryCost,
                 'address' => array(
                     'index' => $order_data['shipping_postcode'],
                     'city' => $order_data['shipping_city'],
@@ -206,7 +205,10 @@ class ModelRetailcrmOrder extends Model {
                     ))
                 )
             );
-
+            if(!empty($deliveryCost)){
+                $order['delivery']['cost'] = $deliveryCost;
+            }
+            
             $orderProducts = isset($order_data['products']) ? $order_data['products'] : $order_data['order_product'];
             $offerOptions = array('select', 'radio');
 
diff --git a/system/cron/dispatch.php b/system/cron/dispatch.php
index dfd546b..69ee0ed 100644
--- a/system/cron/dispatch.php
+++ b/system/cron/dispatch.php
@@ -34,17 +34,12 @@ if (!defined('DIR_APPLICATION')) {
 require_once(DIR_SYSTEM . 'startup.php');
 
 // Application Classes
-if (version_compare(VERSION, '2.2', '>=')) {
-    require_once(DIR_SYSTEM . 'library/cart/currency.php');
-    require_once(DIR_SYSTEM . 'library/cart/user.php');
-    require_once(DIR_SYSTEM . 'library/cart/weight.php');
-    require_once(DIR_SYSTEM . 'library/cart/length.php');
-} else {
-    require_once(DIR_SYSTEM . 'library/currency.php');
-    require_once(DIR_SYSTEM . 'library/user.php');
-    require_once(DIR_SYSTEM . 'library/weight.php');
-    require_once(DIR_SYSTEM . 'library/length.php');
-}
+require_once(DIR_SYSTEM . 'library/cart/currency.php');
+require_once(DIR_SYSTEM . 'library/cart/user.php');
+require_once(DIR_SYSTEM . 'library/cart/weight.php');
+require_once(DIR_SYSTEM . 'library/cart/length.php');
+
+
 
 // Registry
 $registry = new Registry();
@@ -68,10 +63,7 @@ foreach ($query->rows as $setting) {
     if (!$setting['serialized']) {
         $config->set($setting['key'], $setting['value']);
     } else {
-        if (version_compare(VERSION, '2.1', '>='))
-            $config->set($setting['key'], json_decode($setting['value']), true);
-        else
-            $config->set($setting['key'], unserialize($setting['value']));
+        $config->set($setting['key'], json_decode($setting['value']), true);
     }
 }
 
@@ -85,10 +77,9 @@ $registry->set('log', $log);
 
 
 // Event
-if (version_compare(VERSION, '2.2', '>=')) {
-    $event = new Event($registry);
-    $registry->set('event', $event);
-}
+$event = new Event($registry);
+$registry->set('event', $event);
+
 
 function error_handler($errno, $errstr, $errfile, $errline) {
     global $log, $config;
@@ -153,17 +144,12 @@ $registry->set('language', $language);
 $document = new Document();
 $registry->set('document', $document);
 
-if (version_compare(VERSION, '2.2', '>=')) {
-    $registry->set('currency', new Cart\Currency($registry));
-    $registry->set('weight', new Cart\Weight($registry));
-    $registry->set('length', new Cart\Length($registry));
-    $registry->set('user', new Cart\User($registry));
-} else {
-    $registry->set('currency', new Currency($registry));
-    $registry->set('weight', new Weight($registry));
-    $registry->set('length', new Length($registry));
-    $registry->set('user', new User($registry));
-}
+
+$registry->set('currency', new Cart\Currency($registry));
+$registry->set('weight', new Cart\Weight($registry));
+$registry->set('length', new Cart\Length($registry));
+$registry->set('user', new Cart\User($registry));
+
 
 $controller = new Front($registry);
 $action = new Action($cli_action);
diff --git a/system/cron/export.php b/system/cron/export.php
index 8da82f4..5880920 100644
--- a/system/cron/export.php
+++ b/system/cron/export.php
@@ -1,3 +1,3 @@
 <?php
-$cli_action = 'module/retailcrm/export';
+$cli_action = 'extension/module/retailcrm/export';
 require_once('dispatch.php');
diff --git a/system/cron/history.php b/system/cron/history.php
index a6d09ae..1abbef5 100644
--- a/system/cron/history.php
+++ b/system/cron/history.php
@@ -1,3 +1,3 @@
 <?php
-$cli_action = 'module/retailcrm/history';
+$cli_action = 'extension/module/retailcrm/history';
 require_once('dispatch.php');
diff --git a/system/cron/icml.php b/system/cron/icml.php
index 85d7d82..7c7f21c 100644
--- a/system/cron/icml.php
+++ b/system/cron/icml.php
@@ -1,3 +1,3 @@
 <?php
-$cli_action = 'module/retailcrm/icml';
+$cli_action = 'extension/module/retailcrm/icml';
 require_once('dispatch.php');
diff --git a/system/library/retailcrm/OpencartApiClient.php b/system/library/retailcrm/OpencartApiClient.php
index 9d1ed37..c9e3569 100644
--- a/system/library/retailcrm/OpencartApiClient.php
+++ b/system/library/retailcrm/OpencartApiClient.php
@@ -43,7 +43,7 @@ class OpencartApiClient {
     public function request($method, $getParams, $postParams) {
         $opencartStoreInfo = $this->model_setting_store->getStore($this->opencartStoreId);
 
-        if(version_compare(VERSION, '2.1.0', '>=') && !empty($this->apiToken)) {
+        if(!empty($this->apiToken)) {
             $getParams['token'] = $this->apiToken;
         }
 
@@ -89,19 +89,10 @@ class OpencartApiClient {
         $api = array();
         foreach ($apiUsers as $apiUser) {
             if($apiUser['status'] == 1) {
-                if(version_compare(VERSION, '2.1.0', '>=')) {
-                    $api = array(
-                        'api_id' => $apiUser['api_id'],
-                        'key' => $apiUser['key']
-                    );
-                } else {
-                    $api = array(
-                        'api_id' => $apiUser['api_id'],
-                        'username' => $apiUser['username'],
-                        'password' => $apiUser['password']
-                    );
-                }
-
+                $api = array(
+                    'api_id' => $apiUser['api_id'],
+                    'key' => $apiUser['key']
+                );
                 break;
             }
         }
@@ -109,26 +100,24 @@ class OpencartApiClient {
         if(!isset($api['api_id']))
             return false;
 
-        if(version_compare(VERSION, '2.1.0', '>=')) {
-            $alreadyBinded = false;
+        
+        $alreadyBinded = false;
 
-            $innerIp = $this->getInnerIpAddr();
-            $apiIps = $this->model_user_api->getApiIps($api['api_id']);
-            foreach($apiIps as $apiIp) {
-                if($apiIp['ip'] == $innerIp)
-                    $alreadyBinded = true;
-            }
-
-            if(!$alreadyBinded) {
-                $this->model_user_api->addApiIp($api['api_id'], $innerIp);
-            }
+        $innerIp = $this->getInnerIpAddr();
+        $apiIps = $this->model_user_api->getApiIps($api['api_id']);
+        foreach($apiIps as $apiIp) {
+            if($apiIp['ip'] == $innerIp)
+                $alreadyBinded = true;
         }
 
+        if(!$alreadyBinded) {
+            $this->model_user_api->addApiIp($api['api_id'], $innerIp);
+        }
+        
+
         $apiAnswer = $this->request('login', array(), $apiUser);
 
-        if(version_compare(VERSION, '2.1.0', '>=')) {
-            $this->apiToken = $apiAnswer['token'];
-        }
+        $this->apiToken = $apiAnswer['token'];
 
         return $apiAnswer;
     }
diff --git a/system/library/retailcrm/RetailcrmHistoryHelper.php b/system/library/retailcrm/RetailcrmHistoryHelper.php
index bc5a718..d21b327 100644
--- a/system/library/retailcrm/RetailcrmHistoryHelper.php
+++ b/system/library/retailcrm/RetailcrmHistoryHelper.php
@@ -12,7 +12,7 @@ class RetailcrmHistoryHelper {
         $orders = array();
         foreach ($orderHistory as $change) {
             $change['order'] = self::removeEmpty($change['order']);
-            if($change['order']['items']) {
+            if(isset($change['order']['items']) && $change['order']['items']) {
                 $items = array();
                 foreach($change['order']['items'] as $item) {
                     if(isset($change['created'])) {
@@ -23,18 +23,18 @@ class RetailcrmHistoryHelper {
                 $change['order']['items'] = $items;
             }
 
-            if($change['order']['contragent']['contragentType']) {
+            if(isset($change['order']['contragent']['contragentType']) && $change['order']['contragent']['contragentType']) {
                 $change['order']['contragentType'] = $change['order']['contragent']['contragentType'];
                 unset($change['order']['contragent']);
             }
 
-            if($orders[$change['order']['id']]) {
+            if(!empty($orders) && $orders[$change['order']['id']]) {
                 $orders[$change['order']['id']] = array_merge($orders[$change['order']['id']], $change['order']);
             } else {
                 $orders[$change['order']['id']] = $change['order'];
             }
 
-            if($change['item']) {
+            if(isset($change['item']) && $change['item']) {
                 if($orders[$change['order']['id']]['items'][$change['item']['id']]) {
                     $orders[$change['order']['id']]['items'][$change['item']['id']] = array_merge($orders[$change['order']['id']]['items'][$change['item']['id']], $change['item']);
                 } else {
@@ -51,15 +51,15 @@ class RetailcrmHistoryHelper {
                     $orders[$change['order']['id']]['items'][$change['item']['id']][$fields['item'][$change['field']]] = $change['newValue'];
                 }
             } else {
-                if($fields['delivery'][$change['field']] == 'service') {
+                if(isset($fields['delivery'][$change['field']]) && $fields['delivery'][$change['field']] == 'service'){
                     $orders[$change['order']['id']]['delivery']['service']['code'] = self::newValue($change['newValue']);
-                } elseif($fields['delivery'][$change['field']]) {
+                } elseif(isset($fields['delivery'][$change['field']]) && $fields['delivery'][$change['field']]) {
                     $orders[$change['order']['id']]['delivery'][$fields['delivery'][$change['field']]] = self::newValue($change['newValue']);
-                } elseif($fields['orderAddress'][$change['field']]) {
+                } elseif(isset($fields['orderAddress'][$change['field']]) && $fields['orderAddress'][$change['field']]){
                     $orders[$change['order']['id']]['delivery']['address'][$fields['orderAddress'][$change['field']]] = $change['newValue'];
-                } elseif($fields['integrationDelivery'][$change['field']]) {
+                } elseif(isset($fields['integrationDelivery'][$change['field']]) && $fields['integrationDelivery'][$change['field']]) {
                     $orders[$change['order']['id']]['delivery']['service'][$fields['integrationDelivery'][$change['field']]] = self::newValue($change['newValue']);
-                } elseif($fields['customerContragent'][$change['field']]) {
+                } elseif(isset($fields['customerContragent'][$change['field']]) && $fields['customerContragent'][$change['field']]) {
                     $orders[$change['order']['id']][$fields['customerContragent'][$change['field']]] = self::newValue($change['newValue']);
                 } elseif(strripos($change['field'], 'custom_') !== false) {
                     $orders[$change['order']['id']]['customFields'][str_replace('custom_', '', $change['field'])] = self::newValue($change['newValue']);