From e1df68f2091df07c60bb8112f15de6e435dda6ef Mon Sep 17 00:00:00 2001
From: Dima Uryvskiy <dima-uryvskiyy@rambler.ru>
Date: Fri, 18 Jun 2021 12:46:18 +0300
Subject: [PATCH] Fix 'Warning: array_flip(): Can only flip STRING and INTEGER
 values'

---
 src/include/class-wc-retailcrm-history.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/include/class-wc-retailcrm-history.php b/src/include/class-wc-retailcrm-history.php
index c11ba2a..8f4cd90 100644
--- a/src/include/class-wc-retailcrm-history.php
+++ b/src/include/class-wc-retailcrm-history.php
@@ -187,6 +187,9 @@ if ( ! class_exists( 'WC_Retailcrm_History' ) ) :
         protected function ordersHistory($date, $sinceId)
         {
             $filter = array('startDate' => $date);
+
+            unset($this->retailcrmSettings['client_roles']);
+
             $options = array_flip(array_filter($this->retailcrmSettings));
 
             if ($sinceId) {