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 ('f662d0be22ccf115f8d1e92d74ff531b','0','18.188.241.82','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714806436','thread.php?threadid=960&sid=9916a54fb8f7893ab805d6cff4b8a615','0','0','')
mysql error: Duplicate entry 'f662d0be22ccf115f8d1e92d74ff531b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 04.05.2024 @ 09:07
Script: /thread.php?threadid=960&sid=9916a54fb8f7893ab805d6cff4b8a615
Referer: http://wehrbauten.de/thread.php?threadid=960&sid=9916a54fb8f7893ab805d6cff4b8a615