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 = 183
ORDER BY prefixset.displayorder, prefix.displayorder;

MySQL Error : Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (latin1_general_ci,IMPLICIT) for operation '='
Error Number : 1267
Request Date : Thursday, December 10th 2009 @ 10:28:42 AM
Error Date : Thursday, December 10th 2009 @ 10:28:42 AM
Script : http://www........./newthread.php?do=newthread&f=183
Referrer : http://www..............
IP Address :
Username :
Classname : vB_Database
MySQL Version : 5.0.81-community

arkadaşlar bu hatayı alıyorum 3.8.4 e upgrade yaptıktan sonra yeni konu açmak istediğimde bu hatayı veriyor

bandwidth çok yüksek onunla alakalı olduğunu sanmıyorum