This file needs a server

You're seeing this because index.html was opened directly from disk. It's the app's template — the code it loads is served, not bundled into this file — so there's nothing here to run.

From the project folder:

npm install
npm run dev

Then open http://localhost:3000. To just look at the site without installing anything, open preview/mydriveit-standalone.html instead — that one is the whole site in a single file. README.md has the rest.