SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: DELETE FROM bb2_sessions WHERE userid='0' AND ipaddress = '3.84.139.101' AND useragent = 'CCBot/2.0 (https://commoncrawl.org/faq/)'
mysql error: Table 'usr_web794_1.bb2_sessions' doesn't exist
mysql error number: 1146
mysql version: 5.1.73
php version: 5.3.29
Date: 22.07.2019 @ 15:49
Script: /register.php
Referer: