Go to: https://www.mapbox.com/ and sign in to your account or sign up for one.

Go to the "Dashboard" or "Tokens" page and click "Create a token".

Enter a name for your token in the "name" box.

Scroll down and click "Create Token". (The default token scopes work fine for the Geofetch API)

Copy the newly created Token and assign it to the MAPBOX_ACCESS_TOKEN = "<Place_Your_MapBox_Access_Token_Here>"; on line 1 of main.js.

Save main.js and open or refresh index.html and it should work.

Go bananas 🍌! ;)