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 ('5c9af3f3a74390118ecbca0dc61c565d','0','3.129.70.44','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715759645','addreply.php?action=quote&postid=11686&sid=ccf1e3ce952d6a4ae75164131ec90d60','0','0','')
mysql error: Duplicate entry '5c9af3f3a74390118ecbca0dc61c565d' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 15.05.2024 @ 09:54
Script: /addreply.php?action=quote&postid=11686&sid=ccf1e3ce952d6a4ae75164131ec90d60
Referer: