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 ('634796acae141a85de4f44d2bddd33ed','0','216.73.216.187','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1750166460','addreply.php?action=quote&postid=472874','0','0','')
mysql error: Duplicate entry '634796acae141a85de4f44d2bddd33ed' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.6.22-MariaDB-0ubuntu0.22.04.1-log
php version: 5.6.40-nmm10
Date: 17.06.2025 @ 15:21
Script: /forum/addreply.php?action=quote&postid=472874
Referer: