SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: DELETE FROM bb2_sessions WHERE userid='0' AND ipaddress = '38.107.179.210' AND useragent = 'CCBot/1.0 (+http://www.commoncrawl.org/bot.html)'
mysql error: Table 'db_79735_3.bb2_sessions' doesn't exist
mysql error number: 1146
mysql version: 5.1.62-0ubuntu0.10.04.1
php version: 5.3.13
Date: 17.05.2012 @ 07:29
Script: /forum/start.php
Referer: