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 ('f525bcc3fe3e739d243713c29b37aa17','0','3.21.104.72','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715459853','board.php?boardid=683&sid=92ca574db523f3a47546aa9b87b6a27c','0','0','')
mysql error: Duplicate entry 'f525bcc3fe3e739d243713c29b37aa17' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 11.05.2024 @ 22:37
Script: /board.php?boardid=683&sid=92ca574db523f3a47546aa9b87b6a27c
Referer: http://wehrbauten.de/board.php?boardid=683&sid=92ca574db523f3a47546aa9b87b6a27c