JS code not displaying on web host

I have started code with mosh Javascript, set up visual studio code, live server, node, etc. I had made it to control flow practice exercises. Halfway through those, the code results aren’t sending to 5500. I tried deleting my js basics folder and restarting a new one. I have discovered that the index.js folder is still working- it will display Hello World etc. The code from index.js will not work though, even though I have the source code to index.js in the index.html folder as instructed.
The one change I have made, which didn’t think should affect things, is i removed the end of life adobe flash.

Control Flow is the 4th chapter of the course. Do the previous exercises still work?
Do you get an error in the console?