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 ('e15173e8ae471c7f2a93152df5f9b3d6','0','3.138.204.208','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714705803','thread.php?goto=lastpost&threadid=1667&sid=52ff08688edadf0d6f5ebb39aa04c4fc','0','0','')
mysql error: Duplicate entry 'e15173e8ae471c7f2a93152df5f9b3d6' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 03.05.2024 @ 05:10
Script: /thread.php?goto=lastpost&threadid=1667&sid=52ff08688edadf0d6f5ebb39aa04c4fc
Referer: http://wehrbauten.de/thread.php?goto=lastpost&threadid=1667&sid=52ff08688edadf0d6f5ebb39aa04c4fc