What the heck?
 

No one touched the db, but all day, everyone on my forum has gotten this db error:

Database error in vBulletin 3.8.4:

Invalid SQL:

SELECT COUNT(post.dateline) AS postcount, post.userid, user.username, usergroupid,
IF(displaygroupid=0, usergroupid, displaygroupid) AS displaygroupid
FROM vb_post AS post
JOIN vb_user AS user ON (post.userid = user.userid)
WHERE dateline > 1272945600
GROUP BY userid
ORDER BY postcount DESC
LIMIT 1;

MySQL Error : MySQL server has gone away
Error Number : 2006
Request Date : Tuesday, May 4th 2010 @ 01:53:18 PM
Error Date : Tuesday, May 4th 2010 @ 01:54:07 PM
Script : http://webkinzcoast.com/forums/index.php
Referrer :
IP Address : 108.7.42.185 (not mine...)
Username : Bardia
Classname : vB_Database
MySQL Version :

--------------- Added [DATE]1272999518[/DATE] at [TIME]1272999518[/TIME] ---------------

It's all good, never mind.

MySQL server has gone away is an issue you will need to take up with your host.