Ditto to what ieahleen said, and to ease your frustration:
- Glitch has been having server stability issues, over the last few weeks, and this affects the tests.
- To test, add this URL to the end of your Live App path in the browser:
If you get a quick response with your package.json file, then your app is properly up-and-running. If you see the page refresh multiple times, before the content appears, then you can deduce Glitch is not serving your app properly, and the tests will likely not pass.
Hope this helps