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 ('451cdcdcb1b3c0d54446a17fa582ef9b','0','18.221.13.173','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714382783','addreply.php?action=quote&postid=1593859&sid=911d7fc524e22ecf2830d4ad407a21b9','0','0','')
mysql error: Duplicate entry '451cdcdcb1b3c0d54446a17fa582ef9b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.1.48-MariaDB-0ubuntu0.18.04.1
php version: 7.4.33
Date: 29.04.2024 @ 11:26
Script: /addreply.php?action=quote&postid=1593859&sid=911d7fc524e22ecf2830d4ad407a21b9
Referer: