SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: DELETE FROM bb1_sessions WHERE userid='0' AND ipaddress = '54.144.81.235' AND useragent = 'CCBot/2.0 (http://commoncrawl.org/faq/)'
mysql error: Table 'iphoneci_forum.bb1_sessions' doesn't exist
mysql error number: 1146
mysql version: 10.0.20-MariaDB
php version: 5.4.43
Date: 31.07.2015 @ 15:20
Script: /thema15884-S-5603-sarj-sorunu.htm
Referer: