SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: DELETE FROM bb1_sessions WHERE userid='0' AND ipaddress = '54.81.103.61' AND useragent = 'CCBot/2.0 (http://commoncrawl.org/faq/)'
mysql error: Table 'usr_web297_1.bb1_sessions' doesn't exist
mysql error number: 1146
mysql version: 5.7.14
php version: 5.2.17-0.dotdeb.0
Date: 16.08.2017 @ 15:21
Script: /forum/index.php
Referer: