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 ('fe9a64f5c19553ac5664666dc92f2242','0','3.148.106.149','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715733306','addreply.php?action=quote&postid=141164&sid=c3f5e312509e26f68d50a3f55fc52dcb','0','0','')
mysql error: Duplicate entry 'fe9a64f5c19553ac5664666dc92f2242' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.6.16-MariaDB-0ubuntu0.22.04.1
php version: 5.6.40
Date: 15.05.2024 @ 02:35
Script: /addreply.php?action=quote&postid=141164&sid=c3f5e312509e26f68d50a3f55fc52dcb
Referer: