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 ('2666ab9140fad9326bc9e3907f3a3b4f','0','216.73.216.136','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1761668684','attachment.php?attachmentid=9495','0','0','')
mysql error: Duplicate entry '2666ab9140fad9326bc9e3907f3a3b4f' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 28.10.2025 @ 17:24
Script: /attachment.php?attachmentid=9495
Referer: