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 ('0571bb354427ced8ee27eb544d9d55da','0','18.216.190.167','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714895680','thread.php?goto=lastpost&threadid=709&sid=2cebf733f51fa959c6423169a08e4a6c','0','0','')
mysql error: Duplicate entry '0571bb354427ced8ee27eb544d9d55da' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 05.05.2024 @ 09:54
Script: /thread.php?goto=lastpost&threadid=709&sid=2cebf733f51fa959c6423169a08e4a6c
Referer: http://wehrbauten.de/thread.php?goto=lastpost&threadid=709&sid=2cebf733f51fa959c6423169a08e4a6c