I'm getting an Error when guests post.
 

Okay, here's the problem! I'm getting this error report when my guests post in one particular forum only that they are allowed to.

Database error in vBulletin 3.5.1:

Invalid SQL:
SELECT COUNT(*) AS count FROM vb_user WHERE referrerid =;

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 : Sunday, March 26th 2006 @ 01:08:55 AM
Script : http://www.asianunityforum.com/showt...=3895#post3895
Referrer :
IP Address : 68.230.237.222
Username : PRETTYBOI
Classname : vb_database

Can someone help me fix this please or give me an MySQL commands to execute this query to correct the problem. Thanks!!!

Track down the code inside showthread.php. You need to add a line of code stating that if the referrerid is empty then don't run that sql selection.