Nothing comes up when I enter node app.js in terminal

Not getting any errors but nothing comes up when I enter “node app.js” in terminal I had it working before on port 3000 but now having issues anyone else get stuck on this part of this project for pro-folio?

https://www.codecademy.com/projects/portfolio/ecommerce-app-rest-api

It only let me paste one pic per post but here is my terminal