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 ('051cbb0af32eede2fa24cd671e281e7b','0','18.224.33.107','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714741566','board.php?boardid=95&sid=90331139be71c0b3cf1599e915ddff42','0','0','')
mysql error: Duplicate entry '051cbb0af32eede2fa24cd671e281e7b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.6.16-MariaDB-0ubuntu0.22.04.1
php version: 5.6.40
Date: 03.05.2024 @ 15:06
Script: /board.php?boardid=95&sid=90331139be71c0b3cf1599e915ddff42
Referer: