data base error

[accessdeniedzzz]

any one can help how to fix this error ?:

Database error in vBulletin 3.6.4:

Invalid SQL:
SELECT `username` FROM `user` WHERE `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 1
Error Number : 1064
Date : Sunday, May 6th 2007 @ 04:15:01 PM
Script : http://www.MYSITE.com/private.php?do=insertpm&pmid=
Referrer : https://www.MYSITE.com/private.php?do=newpm&u=1
IP Address : XXXXXX
Username : admin
Classname : vB_Database

[Paul M]

Start by disabling any mods you have installed.

[accessdeniedzzz]

it was working well , and isn t related to any mod, last mod added was welcome header, and was around 1 week ago, just yesterday i and all members start to have this error

[Paul M]

Have you disabled all your mods and tested it ?

[accessdeniedzzz]

yes i done so and now is working

what do do next ?? enabling dem one by one to see witch one is defecting the PMing ? right ?

edit: one more question: upgrading to lastest version , will not desable the old ADDons ?

[Paul M]

Originally Posted by accessdeniedzzz

what do do next ?? enabling dem one by one to see witch one is defecting the PMing ? right ?

Basically yes.

Originally Posted by accessdeniedzzz

edit: one more question: upgrading to lastest version , will not desable the old ADDons ?

Nope.

[accessdeniedzzz]

thank you for you help the addon was Cyb adnaced forum permissions based on PM count
now PM is working perfect