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 ('f6bc7e8d2edf3538f5ef5357a37b35fb','0','3.129.73.6','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1734869145','addreply.php?postid=19647','0','0','')
mysql error: Duplicate entry 'f6bc7e8d2edf3538f5ef5357a37b35fb' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 22.12.2024 @ 13:05
Script: /addreply.php?postid=19647
Referer: http://gttempel.de/addreply.php?postid=19647