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 ('a72411ea615d3f1302d08d81a07178ef','0','18.221.154.151','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715294153','thread.php?goto=firstnew_thread&threadid=2101&sid=5b63d65438253e1aec0d35e1dc455022','0','0','')
mysql error: Duplicate entry 'a72411ea615d3f1302d08d81a07178ef' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 10.05.2024 @ 00:35
Script: /thread.php?goto=firstnew_thread&threadid=2101&sid=5b63d65438253e1aec0d35e1dc455022
Referer: http://wehrbauten.de/thread.php?goto=firstnew_thread&threadid=2101&sid=5b63d65438253e1aec0d35e1dc455022