SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: DELETE FROM bb1_sessions WHERE userid='0' AND ipaddress = '54.147.10.72' 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: 10.0.21-MariaDB-log
php version: 5.4.43
Date: 03.09.2015 @ 19:06
Script: /thema7031-1200-1208-ler-icin-ekran-isik-sorunu-olanlar-100-ok.htm
Referer: