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 ('d340f6924d2c0265d1cf5a51d391da91','0','18.118.144.69','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715532686','board.php?boardid=194&sid=848063f5f899548c17f5502d867d21e6','0','0','')
mysql error: Duplicate entry 'd340f6924d2c0265d1cf5a51d391da91' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 12.05.2024 @ 18:51
Script: /board.php?boardid=194&sid=848063f5f899548c17f5502d867d21e6
Referer: http://wehrbauten.de/board.php?boardid=194&sid=848063f5f899548c17f5502d867d21e6