Another db error!

[tafreeh]

today i received a new db error which i never had it before.

Database error in vBulletin 3.8.4:

Invalid SQL:

                SELECT usergroupid FROM vb_icon AS icon
                INNER JOIN vb_imagecategorypermission USING (imagecategoryid)
                WHERE icon.iconid = 2
                    AND usergroupid IN ();

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 ')' at line 4
Error Number  : 1064

how do i resolve it ?
and why i m getting so much db errors day by day ?