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 ('8d7bf298861bfc562933ea6de8bf84ba','0','3.145.178.106','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714323623','board.php?boardid=227&sid=c6734a4113c949a3496ab0d95d96bcf9','0','0','')
mysql error: Duplicate entry '8d7bf298861bfc562933ea6de8bf84ba' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 28.04.2024 @ 19:00
Script: /board.php?boardid=227&sid=c6734a4113c949a3496ab0d95d96bcf9
Referer: http://wehrbauten.de/board.php?boardid=227&sid=c6734a4113c949a3496ab0d95d96bcf9