Fatal error: Uncaught exception 'Exception' with message 'Error: Subquery returns more than 1 row<br />Error No: 1242<br />SELECT GROUP_CONCAT(product_id) as ids FROM oc_product_filter WHERE filter_id = (SELECT filter_id FROM oc_product_filter WHERE product_id = '14709' AND filter_id IN (SELECT filter_id FROM oc_filter WHERE filter_group_id = 28)) AND product_id IN (14709)' in /var/www/market_spb_k_usr82/data/www/spb-katalog.ru/system/storage/modification/system/library/db/mysqli.php:53 Stack trace: #0 /var/www/market_spb_k_usr82/data/www/spb-katalog.ru/system/library/db.php(24): DB\MySQLi->query('SELECT GROUP_CO...', Array) #1 /var/www/market_spb_k_usr82/data/www/spb-katalog.ru/catalog/model/catalog/filter.php(22): DB->query('SELECT GROUP_CO...') #2 [internal function]: ModelCatalogFilter->getFilterRelatedProducts(14709) #3 /var/www/market_spb_k_usr82/data/www/spb-katalog.ru/system/storage/modification/system/engine/loader.php(183): call_user_func_array(Array, Array) #4 [internal function]: Loader->{closure}(Array, Array in /var/www/market_spb_k_usr82/data/www/spb-katalog.ru/system/storage/modification/system/library/db/mysqli.php on line 53