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 ('821eab85456d98ff1f5792167b895fb7','0','216.73.216.162','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1755680695','thread.php?goto=nextnewest&threadid=798','0','0','')
mysql error: Duplicate entry '821eab85456d98ff1f5792167b895fb7' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 20.08.2025 @ 11:04
Script: /thread.php?goto=nextnewest&threadid=798
Referer: