EC2 instance not loading some CSS

Is it possible that CSS is loaded from CDN when deploying an app to AWS?

I have an app that is in a git repository and its working perfectly... CSS, RaphaelJS and file linkage perfect.

However, when I connect to the remote machine to deploy the app, it won't load the CSS nor the "front-end" file that uses AngularJS and RaphaelJS.

I have installed all the dependencies on the remote machine via npm install (I have a package.json that sits at the root directory of my app).

Do you have any solutions to get it to work?

NOTE: Before, I couldn't launch the NodeJS server for some reason but now I can and it works because I've managed to send some emails, but, most of the app itself doesnt work.