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 ('4ba808afe4c271def56a2abd777dd20f','0','3.142.173.227','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714701748','thread.php?goto=lastpost&threadid=583&sid=f3d60d5206e67fc6fa10dc5bef36ef8c','0','0','')
mysql error: Duplicate entry '4ba808afe4c271def56a2abd777dd20f' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 03.05.2024 @ 04:02
Script: /thread.php?goto=lastpost&threadid=583&sid=f3d60d5206e67fc6fa10dc5bef36ef8c
Referer: http://wehrbauten.de/thread.php?goto=lastpost&threadid=583&sid=f3d60d5206e67fc6fa10dc5bef36ef8c