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 ('cb4bb00fc20c87573a9c20f5e0a17ca3','0','3.142.124.135','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1744805777','attachment.php?attachmentid=4204','0','0','')
mysql error: Duplicate entry 'cb4bb00fc20c87573a9c20f5e0a17ca3' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 16.04.2025 @ 14:16
Script: /attachment.php?attachmentid=4204
Referer: http://gttempel.de/attachment.php?attachmentid=4204