ERROR - Mod can edit, user can't (NOT A PERMISSION PROBLEM)

[GSX-Racing]

Hey there tech support...

I am getting this error... for ONE user only. The user can edit their post fine... but when a moderator trys this error comes up.

Can anyone help?

Database error in vBulletin 3.5.4:

Invalid SQL:
SELECT userid FROM vb3_user WHERE username = 'ThreeB's';

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 's'' at line 1
Error Number : 1064
Date         : Tuesday, April 4th 2006 @ 06:23:37 PM
Script       : http://www.domain.com/vb/editpost.phtml
Referrer     : http://www.domain.com/vb/showthread.phtml?t=18677
IP Address   : ??.???.???.??
Username     : DoC
Classname    : vb_database

Thanks in advance.