diff --git a/classes/modules/RetailCRM/classes/retailcrm/RetailcrmApiClient.php b/classes/modules/RetailCRM/classes/retailcrm/RetailcrmApiClient.php
deleted file mode 100644
index a479845..0000000
--- a/classes/modules/RetailCRM/classes/retailcrm/RetailcrmApiClient.php
+++ /dev/null
@@ -1,811 +0,0 @@
-<?php
-/**
- *  retailCRM API client class
- */
-class RetailcrmApiClient
-{
-    const VERSION = 'v3';
-
-    protected $client;
-
-    /**
-     * Site code
-     */
-    protected $siteCode;
-
-    /**
-     * Client creating
-     *
-     * @param  string $url
-     * @param  string $apiKey
-     * @param  string $site
-     * @return mixed
-     */
-    public function __construct($url, $apiKey, $site = null)
-    {
-        if ('/' != substr($url, strlen($url) - 1, 1)) {
-            $url .= '/';
-        }
-
-        $url = $url . 'api/' . self::VERSION;
-
-        $this->client = new RetailcrmHttpClient($url, array('apiKey' => $apiKey));
-        $this->siteCode = $site;
-    }
-
-    /**
-     * Create a order
-     *
-     * @param  array       $order
-     * @param  string      $site (default: null)
-     * @return RetailcrmApiResponse
-     */
-    public function ordersCreate(array $order, $site = null)
-    {
-        if (!sizeof($order)) {
-            throw new InvalidArgumentException('Parameter `order` must contains a data');
-        }
-
-        return $this->client->makeRequest("/orders/create", RetailcrmHttpClient::METHOD_POST, $this->fillSite($site, array(
-            'order' => json_encode($order)
-        )));
-    }
-
-    /**
-     * Edit a order
-     *
-     * @param  array       $order
-     * @param  string      $by
-     * @param  string      $site (default: null)
-     * @return RetailcrmApiResponse
-     */
-    public function ordersEdit(array $order, $by = 'externalId', $site = null)
-    {
-        if (!sizeof($order)) {
-            throw new InvalidArgumentException('Parameter `order` must contains a data');
-        }
-
-        $this->checkIdParameter($by);
-
-        if (!isset($order[$by])) {
-            throw new InvalidArgumentException(sprintf('Order array must contain the "%s" parameter.', $by));
-        }
-
-        return $this->client->makeRequest(
-            "/orders/" . $order[$by] . "/edit",
-            RetailcrmHttpClient::METHOD_POST,
-            $this->fillSite($site, array(
-                'order' => json_encode($order),
-                'by' => $by,
-            ))
-        );
-    }
-
-    /**
-     * Upload array of the orders
-     *
-     * @param  array       $orders
-     * @param  string      $site (default: null)
-     * @return RetailcrmApiResponse
-     */
-    public function ordersUpload(array $orders, $site = null)
-    {
-        if (!sizeof($orders)) {
-            throw new InvalidArgumentException('Parameter `orders` must contains array of the orders');
-        }
-
-        return $this->client->makeRequest("/orders/upload", RetailcrmHttpClient::METHOD_POST, $this->fillSite($site, array(
-            'orders' => json_encode($orders),
-        )));
-    }
-
-    /**
-     * Get order by id or externalId
-     *
-     * @param  string      $id
-     * @param  string      $by (default: 'externalId')
-     * @param  string      $site (default: null)
-     * @return RetailcrmApiResponse
-     */
-    public function ordersGet($id, $by = 'externalId', $site = null)
-    {
-        $this->checkIdParameter($by);
-
-        return $this->client->makeRequest("/orders/$id", RetailcrmHttpClient::METHOD_GET, $this->fillSite($site, array(
-            'by' => $by
-        )));
-    }
-
-    /**
-     * Returns a orders history
-     *
-     * @param  DateTime   $startDate (default: null)
-     * @param  DateTime   $endDate (default: null)
-     * @param  int         $limit (default: 100)
-     * @param  int         $offset (default: 0)
-     * @param  bool        $skipMyChanges (default: true)
-     * @return RetailcrmApiResponse
-     */
-    public function ordersHistory(
-        DateTime $startDate = null,
-        DateTime $endDate = null,
-        $limit = 100,
-        $offset = 0,
-        $skipMyChanges = true
-    ) {
-        $parameters = array();
-
-        if ($startDate) {
-            $parameters['startDate'] = $startDate->format('Y-m-d H:i:s');
-        }
-        if ($endDate) {
-            $parameters['endDate'] = $endDate->format('Y-m-d H:i:s');
-        }
-        if ($limit) {
-            $parameters['limit'] = (int) $limit;
-        }
-        if ($offset) {
-            $parameters['offset'] = (int) $offset;
-        }
-        if ($skipMyChanges) {
-            $parameters['skipMyChanges'] = (bool) $skipMyChanges;
-        }
-
-        return $this->client->makeRequest('/orders/history', RetailcrmHttpClient::METHOD_GET, $parameters);
-    }
-
-    /**
-     * Returns filtered orders list
-     *
-     * @param  array       $filter (default: array())
-     * @param  int         $page (default: null)
-     * @param  int         $limit (default: null)
-     * @return RetailcrmApiResponse
-     */
-    public function ordersList(array $filter = array(), $page = null, $limit = null)
-    {
-        $parameters = array();
-
-        if (sizeof($filter)) {
-            $parameters['filter'] = $filter;
-        }
-        if (null !== $page) {
-            $parameters['page'] = (int) $page;
-        }
-        if (null !== $limit) {
-            $parameters['limit'] = (int) $limit;
-        }
-
-        return $this->client->makeRequest('/orders', RetailcrmHttpClient::METHOD_GET, $parameters);
-    }
-
-    /**
-     * Returns statuses of the orders
-     *
-     * @param  array       $ids (default: array())
-     * @param  array       $externalIds (default: array())
-     * @return RetailcrmApiResponse
-     */
-    public function ordersStatuses(array $ids = array(), array $externalIds = array())
-    {
-        $parameters = array();
-
-        if (sizeof($ids)) {
-            $parameters['ids'] = $ids;
-        }
-        if (sizeof($externalIds)) {
-            $parameters['externalIds'] = $externalIds;
-        }
-
-        return $this->client->makeRequest('/orders/statuses', RetailcrmHttpClient::METHOD_GET, $parameters);
-    }
-
-    /**
-     * Save order IDs' (id and externalId) association in the CRM
-     *
-     * @param  array       $ids
-     * @return RetailcrmApiResponse
-     */
-    public function ordersFixExternalIds(array $ids)
-    {
-        if (!sizeof($ids)) {
-            throw new InvalidArgumentException('Method parameter must contains at least one IDs pair');
-        }
-
-        return $this->client->makeRequest("/orders/fix-external-ids", RetailcrmHttpClient::METHOD_POST, array(
-            'orders' => json_encode($ids),
-        ));
-    }
-
-    /**
-     * Get orders assembly history
-     *
-     * @param  array       $filter (default: array())
-     * @param  int         $page (default: null)
-     * @param  int         $limit (default: null)
-     * @return RetailcrmApiResponse
-     */
-    public function ordersPacksHistory(array $filter = array(), $page = null, $limit = null)
-    {
-        $parameters = array();
-
-        if (sizeof($filter)) {
-            $parameters['filter'] = $filter;
-        }
-        if (null !== $page) {
-            $parameters['page'] = (int) $page;
-        }
-        if (null !== $limit) {
-            $parameters['limit'] = (int) $limit;
-        }
-
-        return $this->client->makeRequest('/orders/packs/history', RetailcrmHttpClient::METHOD_GET, $parameters);
-    }
-
-    /**
-     * Create a customer
-     *
-     * @param  array       $customer
-     * @param  string      $site (default: null)
-     * @return RetailcrmApiResponse
-     */
-    public function customersCreate(array $customer, $site = null)
-    {
-        if (!sizeof($customer)) {
-            throw new InvalidArgumentException('Parameter `customer` must contains a data');
-        }
-        
-        return $this->client->makeRequest("/customers/create", RetailcrmHttpClient::METHOD_POST, $this->fillSite($site, array(
-            'customer' => json_encode($customer)
-        )));
-    }
-
-    /**
-     * Edit a customer
-     *
-     * @param  array       $customer
-     * @param  string      $by (default: 'externalId')
-     * @param  string      $site (default: null)
-     * @return RetailcrmApiResponse
-     */
-    public function customersEdit(array $customer, $by = 'externalId', $site = null)
-    {
-        if (!sizeof($customer)) {
-            throw new InvalidArgumentException('Parameter `customer` must contains a data');
-        }
-
-        $this->checkIdParameter($by);
-
-        if (!isset($customer[$by])) {
-            throw new InvalidArgumentException(sprintf('Customer array must contain the "%s" parameter.', $by));
-        }
-
-        return $this->client->makeRequest(
-            "/customers/" . $customer[$by] . "/edit",
-            RetailcrmHttpClient::METHOD_POST,
-            $this->fillSite(
-                $site,
-                array(
-                    'customer' => json_encode($customer),
-                    'by' => $by
-                )
-            )
-        );
-    }
-
-    /**
-     * Upload array of the customers
-     *
-     * @param  array       $customers
-     * @param  string      $site (default: null)
-     * @return RetailcrmApiResponse
-     */
-    public function customersUpload(array $customers, $site = null)
-    {
-        if (!sizeof($customers)) {
-            throw new InvalidArgumentException('Parameter `customers` must contains array of the customers');
-        }
-
-        return $this->client->makeRequest("/customers/upload", RetailcrmHttpClient::METHOD_POST, $this->fillSite($site, array(
-            'customers' => json_encode($customers),
-        )));
-    }
-
-    /**
-     * Get customer by id or externalId
-     *
-     * @param  string      $id
-     * @param  string      $by (default: 'externalId')
-     * @param  string      $site (default: null)
-     * @return RetailcrmApiResponse
-     */
-    public function customersGet($id, $by = 'externalId', $site = null)
-    {
-        $this->checkIdParameter($by);
-
-        return $this->client->makeRequest("/customers/$id", RetailcrmHttpClient::METHOD_GET, $this->fillSite($site, array(
-            'by' => $by
-        )));
-    }
-
-    /**
-     * Returns filtered customers list
-     *
-     * @param  array       $filter (default: array())
-     * @param  int         $page (default: null)
-     * @param  int         $limit (default: null)
-     * @return RetailcrmApiResponse
-     */
-    public function customersList(array $filter = array(), $page = null, $limit = null)
-    {
-        $parameters = array();
-
-        if (sizeof($filter)) {
-            $parameters['filter'] = $filter;
-        }
-        if (null !== $page) {
-            $parameters['page'] = (int) $page;
-        }
-        if (null !== $limit) {
-            $parameters['limit'] = (int) $limit;
-        }
-
-        return $this->client->makeRequest('/customers', RetailcrmHttpClient::METHOD_GET, $parameters);
-    }
-
-    /**
-     * Save customer IDs' (id and externalId) association in the CRM
-     *
-     * @param  array       $ids
-     * @return RetailcrmApiResponse
-     */
-    public function customersFixExternalIds(array $ids)
-    {
-        if (!sizeof($ids)) {
-            throw new InvalidArgumentException('Method parameter must contains at least one IDs pair');
-        }
-
-        return $this->client->makeRequest("/customers/fix-external-ids", RetailcrmHttpClient::METHOD_POST, array(
-            'customers' => json_encode($ids),
-        ));
-    }
-
-    /**
-     * Get purchace prices & stock balance
-     *
-     * @param  array  $filter (default: array())
-     * @param  int    $page (default: null)
-     * @param  int    $limit (default: null)
-     * @param  string $site (default: null)
-     * @return RetailcrmApiResponse
-     */
-    public function storeInventories(array $filter = array(), $page = null, $limit = null, $site = null)
-    {
-        $parameters = array();
-
-        if (sizeof($filter)) {
-            $parameters['filter'] = $filter;
-        }
-        if (null !== $page) {
-            $parameters['page'] = (int) $page;
-        }
-        if (null !== $limit) {
-            $parameters['limit'] = (int) $limit;
-        }
-
-        return $this->client->makeRequest('/store/inventories', RetailcrmHttpClient::METHOD_GET, $this->fillSite($site, $parameters));
-    }
-
-    /**
-     * Upload store inventories
-     *
-     * @param  array       $offers
-     * @param  string      $site (default: null)
-     * @return RetailcrmApiResponse
-     */
-    public function storeInventoriesUpload(array $offers, $site = null)
-    {
-        if (!sizeof($offers)) {
-            throw new InvalidArgumentException('Parameter `offers` must contains array of the customers');
-        }
-
-        return $this->client->makeRequest(
-            "/store/inventories/upload",
-            RetailcrmHttpClient::METHOD_POST,
-            $this->fillSite($site, array('offers' => json_encode($offers)))
-        );
-    }
-
-    /**
-     * Returns deliveryServices list
-     *
-     * @return RetailcrmApiResponse
-     */
-    public function deliveryServicesList()
-    {
-        return $this->client->makeRequest('/reference/delivery-services', RetailcrmHttpClient::METHOD_GET);
-    }
-
-    /**
-     * Returns deliveryTypes list
-     *
-     * @return RetailcrmApiResponse
-     */
-    public function deliveryTypesList()
-    {
-        return $this->client->makeRequest('/reference/delivery-types', RetailcrmHttpClient::METHOD_GET);
-    }
-
-    /**
-     * Returns orderMethods list
-     *
-     * @return RetailcrmApiResponse
-     */
-    public function orderMethodsList()
-    {
-        return $this->client->makeRequest('/reference/order-methods', RetailcrmHttpClient::METHOD_GET);
-    }
-
-    /**
-     * Returns orderTypes list
-     *
-     * @return RetailcrmApiResponse
-     */
-    public function orderTypesList()
-    {
-        return $this->client->makeRequest('/reference/order-types', RetailcrmHttpClient::METHOD_GET);
-    }
-
-    /**
-     * Returns paymentStatuses list
-     *
-     * @return RetailcrmApiResponse
-     */
-    public function paymentStatusesList()
-    {
-        return $this->client->makeRequest('/reference/payment-statuses', RetailcrmHttpClient::METHOD_GET);
-    }
-
-    /**
-     * Returns paymentTypes list
-     *
-     * @return RetailcrmApiResponse
-     */
-    public function paymentTypesList()
-    {
-        return $this->client->makeRequest('/reference/payment-types', RetailcrmHttpClient::METHOD_GET);
-    }
-
-    /**
-     * Returns productStatuses list
-     *
-     * @return RetailcrmApiResponse
-     */
-    public function productStatusesList()
-    {
-        return $this->client->makeRequest('/reference/product-statuses', RetailcrmHttpClient::METHOD_GET);
-    }
-
-    /**
-     * Returns statusGroups list
-     *
-     * @return RetailcrmApiResponse
-     */
-    public function statusGroupsList()
-    {
-        return $this->client->makeRequest('/reference/status-groups', RetailcrmHttpClient::METHOD_GET);
-    }
-
-    /**
-     * Returns statuses list
-     *
-     * @return RetailcrmApiResponse
-     */
-    public function statusesList()
-    {
-        return $this->client->makeRequest('/reference/statuses', RetailcrmHttpClient::METHOD_GET);
-    }
-
-    /**
-     * Returns sites list
-     *
-     * @return RetailcrmApiResponse
-     */
-    public function sitesList()
-    {
-        return $this->client->makeRequest('/reference/sites', RetailcrmHttpClient::METHOD_GET);
-    }
-
-    /**
-     * Returns stores list
-     *
-     * @return RetailcrmApiResponse
-     */
-    public function storesList()
-    {
-        return $this->client->makeRequest('/reference/stores', RetailcrmHttpClient::METHOD_GET);
-    }
-
-    /**
-     * Edit deliveryService
-     *
-     * @param array $data delivery service data
-     * @return RetailcrmApiResponse
-     */
-    public function deliveryServicesEdit(array $data)
-    {
-        if (!isset($data['code'])) {
-            throw new InvalidArgumentException('Data must contain "code" parameter.');
-        }
-
-        return $this->client->makeRequest(
-            '/reference/delivery-services/' . $data['code'] . '/edit',
-            RetailcrmHttpClient::METHOD_POST,
-            array(
-                'deliveryService' => json_encode($data)
-            )
-        );
-    }
-
-    /**
-     * Edit deliveryType
-     *
-     * @param array $data delivery type data
-     * @return RetailcrmApiResponse
-     */
-    public function deliveryTypesEdit(array $data)
-    {
-        if (!isset($data['code'])) {
-            throw new InvalidArgumentException('Data must contain "code" parameter.');
-        }
-
-        return $this->client->makeRequest(
-            '/reference/delivery-types/' . $data['code'] . '/edit',
-            RetailcrmHttpClient::METHOD_POST,
-            array(
-                'deliveryType' => json_encode($data)
-            )
-        );
-    }
-
-    /**
-     * Edit orderMethod
-     *
-     * @param array $data order method data
-     * @return RetailcrmApiResponse
-     */
-    public function orderMethodsEdit(array $data)
-    {
-        if (!isset($data['code'])) {
-            throw new InvalidArgumentException('Data must contain "code" parameter.');
-        }
-
-        return $this->client->makeRequest(
-            '/reference/order-methods/' . $data['code'] . '/edit',
-            RetailcrmHttpClient::METHOD_POST,
-            array(
-                'orderMethod' => json_encode($data)
-            )
-        );
-    }
-
-    /**
-     * Edit orderType
-     *
-     * @param array $data order type data
-     * @return RetailcrmApiResponse
-     */
-    public function orderTypesEdit(array $data)
-    {
-        if (!isset($data['code'])) {
-            throw new InvalidArgumentException('Data must contain "code" parameter.');
-        }
-
-        return $this->client->makeRequest(
-            '/reference/order-types/' . $data['code'] . '/edit',
-            RetailcrmHttpClient::METHOD_POST,
-            array(
-                'orderType' => json_encode($data)
-            )
-        );
-    }
-
-    /**
-     * Edit paymentStatus
-     *
-     * @param array $data payment status data
-     * @return RetailcrmApiResponse
-     */
-    public function paymentStatusesEdit(array $data)
-    {
-        if (!isset($data['code'])) {
-            throw new InvalidArgumentException('Data must contain "code" parameter.');
-        }
-
-        return $this->client->makeRequest(
-            '/reference/payment-statuses/' . $data['code'] . '/edit',
-            RetailcrmHttpClient::METHOD_POST,
-            array(
-                'paymentStatus' => json_encode($data)
-            )
-        );
-    }
-
-    /**
-     * Edit paymentType
-     *
-     * @param array $data payment type data
-     * @return RetailcrmApiResponse
-     */
-    public function paymentTypesEdit(array $data)
-    {
-        if (!isset($data['code'])) {
-            throw new InvalidArgumentException('Data must contain "code" parameter.');
-        }
-
-        return $this->client->makeRequest(
-            '/reference/payment-types/' . $data['code'] . '/edit',
-            RetailcrmHttpClient::METHOD_POST,
-            array(
-                'paymentType' => json_encode($data)
-            )
-        );
-    }
-
-    /**
-     * Edit productStatus
-     *
-     * @param array $data product status data
-     * @return RetailcrmApiResponse
-     */
-    public function productStatusesEdit(array $data)
-    {
-        if (!isset($data['code'])) {
-            throw new InvalidArgumentException('Data must contain "code" parameter.');
-        }
-
-        return $this->client->makeRequest(
-            '/reference/product-statuses/' . $data['code'] . '/edit',
-            RetailcrmHttpClient::METHOD_POST,
-            array(
-                'productStatus' => json_encode($data)
-            )
-        );
-    }
-
-    /**
-     * Edit order status
-     *
-     * @param array $data status data
-     * @return RetailcrmApiResponse
-     */
-    public function statusesEdit(array $data)
-    {
-        if (!isset($data['code'])) {
-            throw new InvalidArgumentException('Data must contain "code" parameter.');
-        }
-
-        return $this->client->makeRequest(
-            '/reference/statuses/' . $data['code'] . '/edit',
-            RetailcrmHttpClient::METHOD_POST,
-            array(
-                'status' => json_encode($data)
-            )
-        );
-    }
-
-    /**
-     * Edit site
-     *
-     * @param array $data site data
-     * @return RetailcrmApiResponse
-     */
-    public function sitesEdit(array $data)
-    {
-        if (!isset($data['code'])) {
-            throw new InvalidArgumentException('Data must contain "code" parameter.');
-        }
-
-        return $this->client->makeRequest(
-            '/reference/sites/' . $data['code'] . '/edit',
-            RetailcrmHttpClient::METHOD_POST,
-            array(
-                'site' => json_encode($data)
-            )
-        );
-    }
-
-    /**
-     * Edit store
-     *
-     * @param array $data site data
-     * @return RetailcrmApiResponse
-     */
-    public function storesEdit(array $data)
-    {
-        if (!isset($data['code'])) {
-            throw new InvalidArgumentException('Data must contain "code" parameter.');
-        }
-
-        if (!isset($data['name'])) {
-            throw new InvalidArgumentException('Data must contain "name" parameter.');
-        }
-
-        return $this->client->makeRequest(
-            '/reference/stores/' . $data['code'] . '/edit',
-            RetailcrmHttpClient::METHOD_POST,
-            array(
-                'store' => json_encode($data)
-            )
-        );
-    }
-
-    /**
-     * Update CRM basic statistic
-     *
-     * @return RetailcrmApiResponse
-     */
-    public function statisticUpdate()
-    {
-        return $this->client->makeRequest('/statistic/update', RetailcrmHttpClient::METHOD_GET);
-    }
-
-    /**
-     * Return current site
-     *
-     * @return string
-     */
-    public function getSite()
-    {
-        return $this->siteCode;
-    }
-
-    /**
-     * Set site
-     *
-     * @param  string $site
-     * @return void
-     */
-    public function setSite($site)
-    {
-        $this->siteCode = $site;
-    }
-
-    /**
-     * Check ID parameter
-     *
-     * @param  string $by
-     * @return bool
-     */
-    protected function checkIdParameter($by)
-    {
-        $allowedForBy = array('externalId', 'id');
-        if (!in_array($by, $allowedForBy)) {
-            throw new InvalidArgumentException(sprintf(
-                'Value "%s" for parameter "by" is not valid. Allowed values are %s.',
-                $by,
-                implode(', ', $allowedForBy)
-            ));
-        }
-
-        return true;
-    }
-
-    /**
-     * Fill params by site value
-     *
-     * @param  string $site
-     * @param  array $params
-     * @return array
-     */
-    protected function fillSite($site, array $params)
-    {
-        if ($site) {
-            $params['site'] = $site;
-        } elseif ($this->siteCode) {
-            $params['site'] = $this->siteCode;
-        }
-
-        return $params;
-    }
-}
\ No newline at end of file