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 ('7a4380d50153fdac46ca38a8cb660a1a','0','3.14.130.241','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716257236','register.php?sid=b3e9939565f62f0ea5dfe37d058e0972','0','0','')
mysql error: Duplicate entry '7a4380d50153fdac46ca38a8cb660a1a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 4.4.9
Date: 21.05.2024 @ 04:07
Script: /Forum/register.php?sid=b3e9939565f62f0ea5dfe37d058e0972
Referer: