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 ('7eeef8d4ee63036e06ab5785c3d0fa18','0','18.224.70.238','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716215023','thread.php?goto=firstnew_thread&threadid=5950&sid=4c34fede6b2b603cfb93ca424ab771f6','0','0','')
mysql error: Duplicate entry '7eeef8d4ee63036e06ab5785c3d0fa18' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 20.05.2024 @ 16:23
Script: /thread.php?goto=firstnew_thread&threadid=5950&sid=4c34fede6b2b603cfb93ca424ab771f6
Referer: