A Database Error Occurred

Error Number: 1064

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 5

SELECT * FROM `register` WHERE `Ac_Status` = 1 AND `Prof_Status` = 1 AND `Reg_Id` NOT IN ()

Filename: models/Appfunction_mdl.php

Line Number: 1031