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 ('1967760242c299845396e160a8b1b3ec','0','3.21.100.34','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714833213','thread.php?threadid=1661&goto=lastpost','0','0','')
mysql error: Duplicate entry '1967760242c299845396e160a8b1b3ec' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 04.05.2024 @ 16:33
Script: /thread.php?threadid=1661&goto=lastpost
Referer: