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 ('3857865d163c2930010a68f1da81f2a4','0','3.141.197.251','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1727486789','thread.php?hilightuser=0&threadid=385&threadview=0','0','0','')
mysql error: Duplicate entry '3857865d163c2930010a68f1da81f2a4' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 28.09.2024 @ 03:26
Script: /thread.php?hilightuser=0&threadid=385&threadview=0
Referer: http://gttempel.de/thread.php?hilightuser=0&threadid=385&threadview=0