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 ('47120b09746b73922ee9584a360fee11','0','18.216.1.97','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716324315','thread.php?threadid=8083&goto=lastpost&sid=716007dd352ba4e69c3189f48db64c7f','0','0','')
mysql error: Duplicate entry '47120b09746b73922ee9584a360fee11' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 21.05.2024 @ 22:45
Script: /thread.php?threadid=8083&goto=lastpost&sid=716007dd352ba4e69c3189f48db64c7f
Referer: