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 ('637e13cd6446d70e0954209ba3f9b864','0','216.73.216.51','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1752951920','addreply.php?action=quote&postid=2438','0','0','')
mysql error: Duplicate entry '637e13cd6446d70e0954209ba3f9b864' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 19.07.2025 @ 21:05
Script: /addreply.php?action=quote&postid=2438
Referer: