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 ('573af7f2e538e061520ef08b7040d709','0','18.190.253.133','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1744877359','newthread.php?boardid=27','0','0','')
mysql error: Duplicate entry '573af7f2e538e061520ef08b7040d709' for key 'PRIMARY'
mysql error number: 1062
mysql version: 8.0.11
php version: 5.6.10
Date: 17.04.2025 @ 10:09
Script: /newthread.php?boardid=27
Referer: http://gttempel.de/newthread.php?boardid=27