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 ('7eac1974441d21351fbac4dda31e30ce','0','18.188.40.207','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714746422','board.php?boardid=378&sid=6009c5c097615872b658b9ad892c5f21','0','0','')
mysql error: Duplicate entry '7eac1974441d21351fbac4dda31e30ce' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 03.05.2024 @ 16:27
Script: /board.php?boardid=378&sid=6009c5c097615872b658b9ad892c5f21
Referer: http://wehrbauten.de/board.php?boardid=378&sid=6009c5c097615872b658b9ad892c5f21