Database Error!

[Sawah]

I have database errors

 
Database error in vBulletin 3.6.8:
 
Invalid SQL:
 
SELECT thread.threadid, thread.forumid, thread.title, postusername, postuserid, thread.lastpost, thread.replycount, forum.title AS forumtitle
,post.pagetext AS preview
 
 
FROM thread AS thread
INNER JOIN forum AS forum ON (forum.forumid = thread.forumid)
LEFT JOIN post AS post ON (post.postid = thread.firstpostid)
 
 
WHERE thread.threadid IN (1353, 2717, 12039, 3080, 11186) AND thread.visible = 1
AND forum.password = ''
 
 
ORDER BY lastpost DESC;
 
MySQL Error : MySQL server has gone away
Error Number : 2006

 
Database error in vBulletin 3.6.8:
 
Invalid SQL:
 
SELECT COUNT(*) AS count
FROM attachment
WHERE posthash = '328f0f7d81df9321cf6df218a6f2e02f'
AND userid = 4786;
 
MySQL Error : MySQL server has gone away
Error Number : 2006

 
Database error in vBulletin 3.6.8:
 
Invalid SQL:
 
UPDATE session
SET lastactivity = 1212549894, location = '/vb/showthread.php?t=2292', inforum = 17, inthread = 2292, incalendar = 0, badlocation = 0
WHERE sessionhash = '34de72fc26a2a6cbc04bdd328be8599e';
 
MySQL Error : MySQL server has gone away
Error Number : 2006

 
Database error in vBulletin 3.6.8:
 
Invalid SQL:
 
SELECT user.username, user.usergroupid, user.membergroupids,
session.userid, session.inthread, session.lastactivity,
IF(user.displaygroupid = 0, user.usergroupid, user.displaygroupid) AS displaygroupid, infractiongroupid,
IF(user.options & 512, 1, 0) AS invisible
FROM session AS session
LEFT JOIN user AS user ON(user.userid = session.userid)
WHERE session.lastactivity > 1212530164
ORDER BY username ASC, lastactivity DESC;
 
MySQL Error : MySQL server has gone away
Error Number : 2006

[Lexserv]

See this thread: http://www.vbulletin.com/forum/showthread.php?t=234886