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 ('ef00c85cceb97ddeaabf86d645548fc1','0','3.22.221.214','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1717355176','attachment.php?attachmentid=2761','0','0','')
mysql error: Duplicate entry 'ef00c85cceb97ddeaabf86d645548fc1' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 02.06.2024 @ 21:06
Script: /attachment.php?attachmentid=2761
Referer: http://www.granturismotempel.de/attachment.php?attachmentid=2761