SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb2_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('c3d5563598b9de2c5488a5a556522290','0','216.73.216.167','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1766207238','addreply.php?postid=126841','0','0','')
mysql error: Duplicate entry 'c3d5563598b9de2c5488a5a556522290' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.3.39-MariaDB-0+deb10u2
php version: 5.6.40
Date: 20.12.2025 @ 05:07
Script: /addreply.php?postid=126841
Referer: