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 ('c448e3a015e29c9ad1cf627402e9bfda','0','18.216.83.240','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714107412','thread.php?threadid=2204&goto=lastpost&sid=c469fa5cf5ac59e2ea2a4cd1b66a2e47','0','0','')
mysql error: Duplicate entry 'c448e3a015e29c9ad1cf627402e9bfda' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 26.04.2024 @ 06:56
Script: /thread.php?threadid=2204&goto=lastpost&sid=c469fa5cf5ac59e2ea2a4cd1b66a2e47
Referer: http://wehrbauten.de/thread.php?threadid=2204&goto=lastpost&sid=c469fa5cf5ac59e2ea2a4cd1b66a2e47