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 ('a4688ad86d2312608ccd99bc0a8446dc','0','18.227.46.87','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1734860428','addreply.php?postid=24395','0','0','')
mysql error: Duplicate entry 'a4688ad86d2312608ccd99bc0a8446dc' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 22.12.2024 @ 10:40
Script: /addreply.php?postid=24395
Referer: http://gttempel.de/addreply.php?postid=24395