SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: DELETE FROM bb1_sessions WHERE userid='0' AND ipaddress = '54.162.239.233' AND useragent = 'CCBot/2.0 (https://commoncrawl.org/faq/)'
mysql error: Table 'usr_web152_6.bb1_sessions' doesn't exist
mysql error number: 1146
mysql version: 10.1.26-MariaDB-0+deb9u1
php version: 5.6.37-1+0~20180725093819.2+stretch~1.gbp606419
Date: 25.09.2018 @ 02:15
Script: /community/search.php?action=user&userid=1466
Referer: