SQL ERROR:

SQL: Select `SeriesGroup`.* From `SeriesGroup` where (url_segment_en ='products') and (status = 0) and (category_id = ) limit 1

Message: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') limit 1' at line 1