SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.4): Invalid SQL: DELETE FROM bb1_sessions WHERE userid='0' AND ipaddress = '54.161.73.123' AND useragent = 'CCBot/2.0 (http://commoncrawl.org/faq/)'
mysql error: Table 'usr_web1683_2.bb1_sessions' doesn't exist
mysql error number: 1146
mysql version: 5.7.19
php version: 5.2.17
Date: 17.10.2017 @ 20:40
Script: /
Referer: