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 ('8cbc19e12c3fa2645b637c6c189d4995','0','3.144.193.129','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714992203','thread.php?threadid=2217&goto=lastpost&sid=1663db4f040ad5cf1de65a67b9728298','0','0','')
mysql error: Duplicate entry '8cbc19e12c3fa2645b637c6c189d4995' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 12:43
Script: /thread.php?threadid=2217&goto=lastpost&sid=1663db4f040ad5cf1de65a67b9728298
Referer: http://wehrbauten.de/thread.php?threadid=2217&goto=lastpost&sid=1663db4f040ad5cf1de65a67b9728298