SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('83f6bd85da8aebc0eaad3b1c95da89ba','0','18.119.142.85','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1744983890','addreply.php?action=quote&postid=6665','0','0','')
mysql error: Duplicate entry '83f6bd85da8aebc0eaad3b1c95da89ba' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 18.04.2025 @ 15:44
Script: /addreply.php?action=quote&postid=6665
Referer: http://gttempel.de/addreply.php?action=quote&postid=6665