Cannot submit first backend project

Tell us what’s happening:
I tried to fork the base project and then tried to submit the package.json file or the project url. Both doesn’t work. Also creating a project doesn’t work at all.

Since there are no clear instructions what to do I did trial and error.

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.111 Safari/537.36.

Challenge: How to Use package.json, the Core of Any Node.js Project or npm Package

Link to the challenge:

you need the link to the live app

But this is a backend project. How is it supposed to work?

I have this link

this one is the live app link