SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('4e0a8af1062c596f62f1a51243dff4ba','0','216.73.216.220','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1759219622','thread.php?postid=55945','0','0','')
mysql error: Duplicate entry '4e0a8af1062c596f62f1a51243dff4ba' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 30.09.2025 @ 10:07
Script: /thread.php?postid=55945
Referer: