Problem with PMs

[niiopps]

This is what happens when i try to send a pm on my board..

Database error in vBulletin 3.6.8:

Invalid SQL:
INSERT INTO vb_pm (pmtextid, userid) VALUES (29, );

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         : Friday, October 19th 2007 @ 08:04:51 PM
Script       : http://www.ijcalumni.net/forum/private.php?do=insertpm&pmid=
Referrer     : http://www.ijcalumni.net/forum/private.php?do=newpm
IP Address   : 116.15.40.67
Username     : weiqiang
Classname    : vb_database

Please help me..thanks.