Help., links in posts wont work

[karnevil]

We are experiencing a similar problem on our forum www.legalbeagles.info/forums

Press "Post Reply">>> type in the text and copy/paste a link into the post and hangs the server for quite some time then it comes up with

Database error in vBulletin 3.7.0:

Invalid SQL:
UPDATE vBulletinuser SET xperience_done=0 WHERE userid='7';

MySQL Error : MySQL server has gone away
Error Number : 2006
Request Date : Tuesday, December 2nd 2008 @ 06:46:12 PM
Error Date : Tuesday, December 2nd 2008 @ 06:47:12 PM
Script : http://www.legalbeagles.info/forums/...treply&t=13514
Referrer : http://www.legalbeagles.info/forums/...uote=1&p=92974
IP Address : 81.149.180.15
Username : Tools
Classname : vB_Database
MySQL Version :

However if you then go back and edit the post a link can be added, but only the url shows, it is not clickable to follow.added info. Have just tried links via pm and they work ok, it seems to be just in new posts

I have entered a ticket with the hosting company (servage) but was wondering if there was anything VB related that may be causing it?

Thanks in advance for any advise

Jules