Start the server first

You have opened index.html straight from your hard drive. This is a live application — the page you are looking at needs the Node.js server behind it, which holds the database of 194 countries, handles login and scores the quizzes.

Or, in a terminal in the project folder:

node src/seed/index.js
node server.js

Then open http://localhost:3000. The admin panel is at /admin.