Error: SELECT a.id,a.first_name,a.last_name FROM user_types as u, admins as a, admins_categories as ac WHERE u.name = 'Vendor' AND u.id = a.user_type_id AND ac.admin_id = a.id AND ac.category_id = AND a.status = 1

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 a.status = 1' at line 7