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 ('fa1357140a5961b57f04377055c5b9af','0','3.15.151.159','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716261783','board.php?boardid=38&sid=c07e6dfd24700c598639f12a87284706','0','0','')
mysql error: Duplicate entry 'fa1357140a5961b57f04377055c5b9af' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 21.05.2024 @ 05:23
Script: /board.php?boardid=38&sid=c07e6dfd24700c598639f12a87284706
Referer: http://wehrbauten.de/board.php?boardid=38&sid=c07e6dfd24700c598639f12a87284706