Problems with Glitch project boilerplate

Lesson: Introduction to the Basic Node and Express Challenges

Start this project on Glitch using this link

When you click on this link, a project is created successfully.
But as soon as you click on any file, this message shows up:

This document has been deleted outside of the editor.
Please run "refresh" in the console.

When you run refresh in the console, every file except the .env file disappears.

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