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 ('38fb8c7ba3ad8a91b4da179714448cd5','0','18.190.159.10','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715014719','login.php?sid=96aa8440266c3006b4e8ca5c9ed679de','0','0','')
mysql error: Duplicate entry '38fb8c7ba3ad8a91b4da179714448cd5' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 18:58
Script: /login.php?sid=96aa8440266c3006b4e8ca5c9ed679de
Referer: http://wehrbauten.de/login.php?sid=96aa8440266c3006b4e8ca5c9ed679de