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 GROUP_CONCAT(filter_id) as filter FROM oc_filter WHERE filter_group_id = ' in /var/home/mskapple/public_html/system/library/db/mysqli.php:45 Stack trace: #0 /var/home/mskapple/public_html/system/library/db.php(21): DB\MySQLi->query('SELECT GROUP_CO...', Array) #1 /var/home/mskapple/public_html/catalog/model/catalog/filter.php(57): DB->query('SELECT GROUP_CO...') #2 [internal function]: ModelCatalogFilter->getFilterRelatedProducts(245) #3 /var/home/mskapple/public_html/system/storage/modification/system/engine/loader.php(183): call_user_func_array(Array, Array) #4 [internal function]: Loader->{closure}(Array, Array) #5 /var/home/mskapple/public_html/system/engine/proxy.php(30): call_user_func_array(Object(Closure), Array) #6 /var/home/mskapple/public_html/system/storage/modificatio in /var/home/mskapple/public_html/system/library/db/mysqli.php on line 45