SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('91789b792248dfe459ec6757a73659c7','0','216.73.216.191','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1748460924','addreply.php?postid=35711','0','0','')
mysql error: Duplicate entry '91789b792248dfe459ec6757a73659c7' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 28.05.2025 @ 21:35
Script: /addreply.php?postid=35711
Referer: