[Hornstar]

got this database error today for the first time, it only has happened once so far, it happened from something a member must have done.

Database error in vBulletin 3.6.4:

Invalid SQL:

                               SELECT usergroupid FROM vb3_icon AS icon
                               INNER JOIN vb3_imagecategorypermission USING (imagecategoryid)
                               WHERE icon.iconid = 14
                                       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

Any idea what caused this?