versiyon yukseltmeden dolayi db hatasi

Database error in vBulletin 3.7.3:

Invalid SQL:

            SELECT post.pagetext AS preview,
                thread.threadid, thread.threadid AS postid, thread.title AS threadtitle, thread.iconid AS threadiconid, thread.dateline, thread.forumid,
                thread.sticky, thread.prefixid, thread.taglist, thread.pollid, thread.open, thread.lastpost AS postdateline, thread.visible,
                thread.hiddencount, thread.deletedcount, thread.attach, thread.postusername, thread.forumid,
                
                replycount, IF(views<=replycount, replycount+1, views) AS views,
                thread.lastpost, thread.lastposter, thread.lastpostid
            ,
                deletionlog.userid AS del_userid, deletionlog.username AS del_username, deletionlog.reason AS del_reason,
                user.userid AS postuserid
                , NOT ISNULL(subscribethread.subscribethreadid) AS issubscribed
                
                , attachment.thumbnail_filesize AS thumbsize , MIN(attachment.attachmentid) AS attachmentid 
            FROM thread AS thread
            LEFT JOIN user AS user ON(user.userid = thread.postuserid)

            LEFT JOIN deletionlog AS deletionlog ON(thread.threadid = deletionlog.primaryid AND deletionlog.type = 'thread')
            
             LEFT JOIN subscribethread AS subscribethread
                ON(subscribethread.threadid = thread.threadid AND subscribethread.userid = 3 AND canview = 1)
            LEFT JOIN post AS post ON(post.postid = thread.firstpostid)
            
            LEFT JOIN attachment as attachment ON(attachment.postid = thread.firstpostid AND (attachment.extension = 'jpg' OR attachment.extension = 'gif' OR attachment.extension = 'png')) 
            WHERE thread.threadid IN
        (176, 1654, 186, 3905, 3871, 78, 67, 2189, 69, 66, 76, 934, 3533, 146, 2051, 195, 3347, 90, 619, 173, 93, 890, 231, 220, 75);

MySQL Error   : Mixing of GROUP columns (MIN(),MAX(),COUNT(),...) with no GROUP columns is illegal if there is no GROUP BY clause
Error Number  : 1140
Request Date  : Wednesday, November 12th 2008 @ 08:46:58 PM
Error Date    : Wednesday, November 12th 2008 @ 08:46:58 PM
Script        : http://xxxxxxxx.net/search.php?searchid=68460
Referrer      : http://xxxxxxxx.net/member.php?u=2
IP Address    : 78.157.162.174
Username      : XXI
Classname     : vB_Database
MySQL Version : 5.0.32-Debian_7etch1-log

Mixing of GROUP columns (MIN(),MAX(),COUNT(),...) with no GROUP columns is illegal if there is no GROUP BY clause