vBulletin Datenbankfehler

Datenbankfehler in vBulletin 3.6.8:

Invalid SQL:

 SELECT user.*,usertextfield.*,userfield.*, user.userid, options,
 IF(displaygroupid=0, user.usergroupid, displaygroupid) AS displaygroupid, infractiongroupid
 ,IF((NOT(options & 1024) AND (user.usergroupid IN (-1,6) OR FIND_IN_SET('6', membergroupids))), 0, reputation) AS reputationscore
 ,avatar.avatarpath,NOT ISNULL(customavatar.userid) AS hascustomavatar,customavatar.dateline AS avatardateline, customavatar.width AS avwidth, customavatar.height AS avheight
 
 , lastactivity AS lastvisittime 
 
 
 
 FROM user AS user
 LEFT JOIN usertextfield AS usertextfield ON(usertextfield.userid=user.userid)
 LEFT JOIN userfield AS userfield ON(userfield.userid=user.userid)
 LEFT JOIN reputationlevel AS reputationlevel ON(user.reputationlevelid=reputationlevel.reputationlevelid) 
 LEFT JOIN avatar AS avatar ON(avatar.avatarid = user.avatarid) LEFT JOIN customavatar AS customavatar ON(customavatar.userid = user.userid)
 
 
 
 WHERE 1=1
 AND (user.usergroupid IN (-1,6,7,2,5))
 
 ORDER BY user.username asc 
 LIMIT 0, 30;

MySQL-Fehler : Illegal mix of collations (latin1_swedish_ci,COERCIBLE) and (utf8_general_ci,IMPLICIT) for operation 'find_in_set'
Fehler-Nr. : 1267
Datum : Friday, March 21st 2008 @ 05:49:02 PM
Skript : http://board.meinedomain.de/memberlist.php
Referrer : http://board.meinedomain.de/index.php
IP-Adresse : 82.116.119.84
Benutzername : username
Klassenname : vb_database