I get the following errors when running my firebase server using local host or deploying it (Firebase serve or firebase deploy commands)

GET http://localhost:5000/Issue-Tracker/public/Bug-Tracker/CSS/snackBar.css net::ERR_ABORTED 404 (Not Found) index.html:94 GET http://localhost:5000/public/Bug-Tracker/JS/firebase.js net::ERR_ABORTED 404 (Not Found) firebaseNamespaceCore.ts:114 Uncaught FirebaseError: Firebase: No Firebase App '[DEFAULT]' has been created

• call Firebase App.initializeApp() (app/no-app). at f (firebaseNamespaceCore.ts:114:27) at Object.i [as auth] (firebaseNamespaceCore.ts:196:31) at app.js:26:23

However, when I use a live server like here: https://marketplace.visualstudio.com/items?itemName=ritwickdey.LiveServer I do not get these errors and my program works. I am confused. Why is this so?