Application not displaying anything when ran due to sourcemap loading failure and server error

Not sure what went wrong, I had only just git cloned the project and attempted to run the firebase serve command to run but encountered nothing(a blank page) on the localhost and these errors. Seems to have to do with some of these links. I'm a complete novice I was just trying to learn how to use firebase, so any help on how to fix this would be great to continue forward on the codelab.