Please Help Database error in vBulletin 3.8.4:

[farhan4all]

Database error in vBulletin 3.8.4:

Invalid SQL:

SELECT prefix.*, prefixpermission.usergroupid AS restriction
FROM forumprefixset AS forumprefixset
INNER JOIN prefixset AS prefixset ON (prefixset.prefixsetid = forumprefixset.prefixsetid)
INNER JOIN prefix AS prefix ON (prefix.prefixsetid = prefixset.prefixsetid)
LEFT JOIN prefixpermission AS prefixpermission ON (prefix.prefixid = prefixpermission.prefixid)
WHERE forumprefixset.forumid = 176
ORDER BY prefixset.displayorder, prefix.displayorder;

MySQL Error : Illegal mix of collations (cp1251_general_ci,IMPLICIT) and (latin1_swedish_ci,IMPLICIT) for operation '='
Error Number : 1267
Request Date : Saturday, October 24th 2009 @ 07:59:40 AM
Error Date : Saturday, October 24th 2009 @ 07:59:40 AM
Script : http://www.yourdomain/forums/newthre...ewthread&f=176
Referrer : http://www.yourdomain/forums/forumdisplay.php?f=176
IP Address : ---
Username : Admin
Classname : vB_Database
MySQL Version : 5.1.30

[dodgeboard.com]

Incorrect table format. See this: http://www.vbulletin.com/forum/proje...?issueid=11531