vBulletin Database Error!

[twigman1200]

I keep getting the following sent to my email:

Invalid SQL:
SHOW COLUMNS FROM user LIKE 'username';

MySQL Error : Can't create/write to file '/tmp/#sql_b3902_0.MYI' (Errcode: 28)
Error Number : 1
Request Date : Sunday, February 26th 2012 @ 12:29:55 PM
Error Date : Sunday, February 26th 2012 @ 12:29:55 PM
Script : http://www.halo4news.net/forum/regis...p?do=addmember
Referrer : http://www.halo4news.net/forum/register.php
IP Address : 173.242.124.212
Username : vutkaws723
Classname : vB_Database
MySQL Version :


Any suggestions how I can fix this?

[Lynne]

One or more partitions on your server is out of space or doesn't have enough space to complete this operation. You need to shutdown your forums and contact your host immediately. You or your host will need to find out which partition is low on disk space and either add more space or free up some.