MDB2 Error: syntax error:
_doQuery: [Error message: Could not execute statement] [Last executed query: SELECT COUNT( AS retval FROM shop_article dbl WHERE active=1 AND ( producttype='tyre' OR producttype='' ) AND price>0 AND (rs_vehicle='PCR' OR rs_vehicle='4X4') AND rs_usage_1='SUM' AND ()] [Native code: 1064] [Native message: 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 2]