CMS Database errors after upgrade to 4.0.1

[محروم.كوم]

Having some issues since doing the upgrade. I thought maybe I had an issue with a plug in which I uninstalled fully but still getting the errors. The info that comes back is a huge amount of text so I will not paste it all here. Below is the core info that comes across. I have requested help from my host but not heard back. I have 42 error emails this morning all of which hit in about a 2 hour span around 6 am to 8 am this morning. Looks like two different users.

When I got the error myself last night it seemed to be while replying to a visitor message. Not sure if that is helpful or not.

here is some of the info from the error -
Database error in vBulletin 4.0.1:

Invalid SQL:

REPLACE INTO cache
SET cacheid = 'widget.11500c0d1b2138a43fd3a415aa2e80fe',
expires = 1263387276,
created = 1263386976,

locktime = 0,
data =
MySQL Error : Got a packet bigger than 'max_allowed_packet' bytes
Error Number : 1153
Request Date : Wednesday, January 13th 2010 @ 12:49:36 PM
Error Date : Wednesday, January 13th 2010 @ 12:49:37 PM
Script : http://www.crosseyedgamer.com/
Referrer : http://crosseyedgamer.com/login.php?do=login
IP Address : 169.139.224.109
Username : DOCT0R VIOLENT
Classname : vB_Database
MySQL Version : __DEFINE_LIKE_SHARE__