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 ('04c24c225ffc9013ce36e8acd79c8b68','0','18.227.0.192','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714817250','markread.php?boardid=41&sid=58f5f8bc0b4a4f437897846f19461fee','0','0','')
mysql error: Duplicate entry '04c24c225ffc9013ce36e8acd79c8b68' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 04.05.2024 @ 12:07
Script: /markread.php?boardid=41&sid=58f5f8bc0b4a4f437897846f19461fee
Referer: http://wehrbauten.de/markread.php?boardid=41&sid=58f5f8bc0b4a4f437897846f19461fee