SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: SELECT VERSION()
mysql error: Lost connection to MySQL server during query
mysql error number: 2013
mysql version: 5.1.50-enterprise-gpl-pro-log
php version: 4.4.7-tuxtools
Date: 08.09.2010 @ 18:10
Script: /sc-forum/board.php?boardid=36
Referer: