SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('abe33e0e4e44ebc984073dd149ccf4d6','0','18.118.16.229','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715584491','board.php?boardid=742&sid=c9759da47dc0d25011c0c5c3ca629ebf','0','0','')
mysql error: Duplicate entry 'abe33e0e4e44ebc984073dd149ccf4d6' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 13.05.2024 @ 09:14
Script: /board.php?boardid=742&sid=c9759da47dc0d25011c0c5c3ca629ebf
Referer: http://wehrbauten.de/board.php?boardid=742&sid=c9759da47dc0d25011c0c5c3ca629ebf