Unable to add/remove forum

[davidhso]

While trying to add a forum, I receive this message:
Database error in vBulletin 3.8.0:

Invalid SQL:

REPLACE INTO datastore
(title, data, unserialize)
VALUES
('forumcache', '(thissectionhasmanycharacters'...;

MySQL Error : Got a packet bigger than 'max_allowed_packet' bytes
Error Number : 1153
Request Date : Thursday, February 12th 2009 @ 02:01:47 PM
Error Date : Thursday, February 12th 2009 @ 02:01:48 PM
Script : http://x.com/forum/admincp/forum.php?do=update
Referrer : http://x.com/forum/admincp/forum.php...&parentid=2&s=
IP Address :
Username :
Classname : vB_Database
MySQL Version : 5.0.67-community

When I try to delete a forum, vbulletin displays a message that says: 'cannot find the forum with forumid: x'

[Steve Machol]

This is a server issue. You or your host will need to increase the 'max_allowed_packet' in my.cnf, then restart MySQL. I recommend at least 32M for this setting. If that doesn't work, try 64M.