Forum Database error 2006
 

I am getting a database error and not sure how to pinpoint it:
Code:
Database error in vBulletin 4.0.5:

Invalid SQL:

SELECT * FROM rsslog
WHERE uniquehash IN ('6da91a344c759d3675cb0f1c9c47f680', '4d087020657897840def4baae5211539', 'dad77fb3f41f5e8cce4f65359d9728b7', '001dc7f9f6c87b7352131cf29562172f', '6fcda0425e9904a1f820d21f67aa3d00', 'a5c4af63b384d295ca09979b8e4c0e98', '72d6bce9c9fe783626b4f0b433595617', '0c3f0be34e104131da729886aac1f630', '7d82d4e4d4798765dd8784be6aef5150', 'a1404c8aa082500fb3ba2cc7fee07e9c');

MySQL Error : MySQL server has gone away
Error Number : 2006
Request Date : Sunday, July 18th 2010 @ 08:00:35 AM
Error Date : Sunday, July 18th 2010 @ 08:01:25 AM
Script : http://www.xxx.xxx/forum/cron.php?rand=1279404033
Referrer : http://www.xxx.xxx/forum/laughter/
IP Address : xxx.xxx.xxx.xxx
Username : Unregistered
Classname : vB_Database
MySQL Version :
It seems to come up often but I don't get the "Server has gone away" error for anything else