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 ('467c5c6f6c07e48c228e169f05f9a5fc','0','3.14.142.115','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714305081','board.php?boardid=708&sid=f93d699511c05a096e9674dad3b24d7d','0','0','')
mysql error: Duplicate entry '467c5c6f6c07e48c228e169f05f9a5fc' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 28.04.2024 @ 13:51
Script: /board.php?boardid=708&sid=f93d699511c05a096e9674dad3b24d7d
Referer: http://wehrbauten.de/board.php?boardid=708&sid=f93d699511c05a096e9674dad3b24d7d