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 ('d0fd4f555b00af293ad35a7ab4b023cc','0','3.129.22.135','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714734540','thread.php?threadid=1406&sid=14db06b712edf709030db29084ec6635','0','0','')
mysql error: Duplicate entry 'd0fd4f555b00af293ad35a7ab4b023cc' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 03.05.2024 @ 13:09
Script: /thread.php?threadid=1406&sid=14db06b712edf709030db29084ec6635
Referer: http://wehrbauten.de/thread.php?threadid=1406&sid=14db06b712edf709030db29084ec6635