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 ('c9f3cc1c19400f7fc93b1dadd5715df5','0','18.224.63.104','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1745059101','addreply.php?postid=18986','0','0','')
mysql error: Duplicate entry 'c9f3cc1c19400f7fc93b1dadd5715df5' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 19.04.2025 @ 12:38
Script: /addreply.php?postid=18986
Referer: http://gttempel.de/addreply.php?postid=18986