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 ('ffc16678871bd247a965cdb05fd4ef03','0','18.216.45.133','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1745273563','usercp.php?action=addsubscription&threadid=1669','0','0','')
mysql error: Duplicate entry 'ffc16678871bd247a965cdb05fd4ef03' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 22.04.2025 @ 00:12
Script: /usercp.php?action=addsubscription&threadid=1669
Referer: http://gttempel.de/usercp.php?action=addsubscription&threadid=1669