SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.5): Invalid SQL: DELETE FROM bb1_sessions WHERE userid='0' AND ipaddress = '54.225.46.76' AND useragent = 'CCBot/2.0 (http://commoncrawl.org/faq/)'
mysql error: Table 'usr_web2_1.bb1_sessions' doesn't exist
mysql error number: 1146
mysql version: 10.1.1-MariaDB-1~wheezy-wsrep-log
php version: 5.4.35-0+deb7u2
Date: 25.06.2016 @ 15:45
Script: /forum/gaestebuch.php?userid=13689
Referer: