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 ('70fac15090047ef539f5b4aed93e80ee','0','216.73.216.223','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1748932723','attachment.php?attachmentid=6219','0','0','')
mysql error: Duplicate entry '70fac15090047ef539f5b4aed93e80ee' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 03.06.2025 @ 08:38
Script: /attachment.php?attachmentid=6219
Referer: