SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.4): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('21d1746014d022d04b163cc682eacf7b','0','54.225.39.142','CCBot/2.0 (http://commoncrawl.org/faq/)','1506196210','thread.php?threadid=108','0','0','')
mysql error: INSERT command denied to user 'web775'@'localhost' for table 'bb1_sessions'
mysql error number: 1142
mysql version: 5.5.54-0ubuntu0.12.04.1
php version: 5.2.17
Date: 23.09.2017 @ 21:50
Script: /wbb2/thread.php?threadid=108
Referer: