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 ('a6b639473f1a3adf9ba385bb8c578e79','0','3.147.65.65','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714899653','addreply.php?action=quote&postid=37880','0','0','')
mysql error: Duplicate entry 'a6b639473f1a3adf9ba385bb8c578e79' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 05.05.2024 @ 11:00
Script: /addreply.php?action=quote&postid=37880
Referer: