BB Manager Error

[NeoToxic]

When i try and edit bb codes i cant because of this error

Database error in vBulletin 3.5.4:

Invalid SQL:
SELECT COUNT(*) AS `num` FROM post WHERE `userid` = 1 AND `threadid` =;

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 1
Error Number : 1064
Date         : Monday, May 8th 2006 @ 08:31:45 PM