SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: DELETE FROM bb1_sessions WHERE userid='0' AND ipaddress = '38.107.179.212' AND useragent = 'CCBot/1.0 (+http://www.commoncrawl.org/bot.html)'
mysql error: Table 'zwergenforum.bb1_sessions' doesn't exist
mysql error number: 1146
mysql version: 5.1.49-3-log
php version: 5.3.4
Date: 17.05.2012 @ 09:28
Script: /wbb2/partner.php
Referer: