Trouble with Expense Tracker (MVC Architecture for Full-Stack App)

Hi,

I really cant get this app up and running. Ive search around, tried every npm package the can be related to this, so im a little stuck… The app runs in the terminal, but in devtools I get a lot of errors. Also, tried to delete repo, running npm i again and every other external package that helps building the UI.

What am I missing?