SQL-DATABASE ERROR

Database error in WoltLab Burning Board (): Invalid SQL: DELETE FROM bb1_sessions WHERE userid='0' AND ipaddress = '54.81.59.211' AND useragent = 'CCBot/2.0 (http://commoncrawl.org/faq/)'
mysql error: DELETE command denied to user 'web205'@'localhost' for table 'bb1_sessions'
mysql error number: 1142
mysql version: 5.7.19
php version: 5.2.17
Date: 24.09.2017 @ 03:43
Script: /gnetboard/index.php
Referer: