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 ('8bdc476c5713fc5277bd5b83467696fa','0','3.145.161.228','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716395710','thread.php?threadid=189374&goto=lastpost&sid=3bce0cabc6302bf70dcfe50c3042aeb1','0','0','')
mysql error: Duplicate entry '8bdc476c5713fc5277bd5b83467696fa' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.1.48-MariaDB-0ubuntu0.18.04.1
php version: 7.4.33
Date: 22.05.2024 @ 18:35
Script: /thread.php?threadid=189374&goto=lastpost&sid=3bce0cabc6302bf70dcfe50c3042aeb1
Referer: http://www.gegen-bilderklau.net/thread.php?threadid=189374&goto=lastpost&sid=3bce0cabc6302bf70dcfe50c3042aeb1