Fatal error: Uncaught exception 'Exception' with message 'Error: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '=' at line 1<br />Error No: 1064<br />SELECT main_category FROM oc_product_to_category WHERE product_id == ' in /var/www/uid2053/data/www/storage/modification/system/library/db/mysqli.php:44 Stack trace: #0 /var/www/uid2053/data/www/netoptik.ru/system/library/db.php(49): DB\MySQLi->query('SELECT main_cat...') #1 /var/www/uid2053/data/www/netoptik.ru/catalog/model/extension/module/simular.php(14): DB->query('SELECT main_cat...') #2 [internal function]: ModelExtensionModuleSimular->getMainCategoryId('') #3 /var/www/uid2053/data/www/storage/modification/system/engine/loader.php(248): call_user_func_array(Array, Array) #4 [internal function]: Loader->{closure}(Array, Array) #5 /var/www/uid2053/data/www/netoptik.ru/system/engine/proxy.php(47): call_user_func_array(Object(Closure), Array) #6 /var/www/uid2053/data/www/netoptik.ru/ in /var/www/uid2053/data/www/storage/modification/system/library/db/mysqli.php on line 44