TTH Database Error

mySQL query error: SELECT * FROM cat WHERE active='1' AND id_cat= ORDER BY thu_tu ASC, id_cat DESC mySQL error: 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 'ORDER BY thu_tu ASC, id_cat DESC' at line 1 mySQL error code: Date: Saturday 30th 2020f May 2020 09:51:51 PM