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 ('d8e5705ea5c75320d6139664f5de0285','0','52.15.212.78','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1717245659','addreply.php?action=quote&postid=35533','0','0','')
mysql error: Duplicate entry 'd8e5705ea5c75320d6139664f5de0285' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 01.06.2024 @ 14:40
Script: /addreply.php?action=quote&postid=35533
Referer: http://www.gttempel.at/addreply.php?action=quote&postid=35533