In this challenge we saw a simple website which is not working properly.
We can't interact with the buttons, the countdown timer doesn't work so it's broken.
However, we can still view and analyze the page source which is very important in easy-challs like this.
Clicking on main.js we get:
main.js from page source
Analyzing it, we saw a weird line here:
It's an obviously base64, so we can decode it using Cyberchef or many other tools.