Why i got this?

ERROR:root:Error fetching status for luffy_murom: 403 Client Error: Forbidden for url: https://api.chess.com/pub/player/luffy_murom

You need to have appropriate headers when requesting data, including contact information

You'll also get that if you're not passing any user-agent string at all

That won't do anything. 403 error is an access denied error from the website (Public API endpoint)