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 ('9aaf900650f231ef5bb535bceced0458','0','3.129.70.157','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714825206','addreply.php?postid=84668&sid=d5e77f2fd7c20c455f592c869ecb01e2','0','0','')
mysql error: Duplicate entry '9aaf900650f231ef5bb535bceced0458' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 04.05.2024 @ 14:20
Script: /addreply.php?postid=84668&sid=d5e77f2fd7c20c455f592c869ecb01e2
Referer: