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 ('3b363407683162bfc3648291b08b5d6f','0','3.147.6.203','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1745169126','addreply.php?action=quote&postid=21747','0','0','')
mysql error: Duplicate entry '3b363407683162bfc3648291b08b5d6f' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 20.04.2025 @ 19:12
Script: /addreply.php?action=quote&postid=21747
Referer: http://gttempel.de/addreply.php?action=quote&postid=21747