MySQL Error Occurred

Error Message:
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 'AND (cat_desc != '##HIDDEN##' OR cat_desc IS NULL) ORDER BY priority,cat_name AS' at line 1

SQL:
SELECT cat_name, cat_father_id, cat_id, cat_image, cat_desc FROM hrebel_CubeCart_category WHERE cat_id = AND (cat_desc != '##HIDDEN##' OR cat_desc IS NULL) ORDER BY priority,cat_name ASC