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 ('a6e5fd7de6d8ff60942a7f702e128d8e','0','216.73.216.44','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1758170870','thread.php?postid=25534','0','0','')
mysql error: Duplicate entry 'a6e5fd7de6d8ff60942a7f702e128d8e' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 18.09.2025 @ 06:47
Script: /thread.php?postid=25534
Referer: