What to do if the React application stops working after restarting the computer?

Question

React

There is a working React application that was launched and was just being worked on.
The antivirus asked to restart the computer and after the reboot the application crashed.
In the index.js file, the line is highlighted in red; in App.js, the App function has also become inoperative. And then all dependencies also fell. Over time, this error appeared: Nothing has changed in package.json.document.getElementById('root')

"eslintConfig": {
    "extends": [
      "react-app",
      "react-app/jest"
    ]
  },

Tell me, please, what to do, how to revive the project?

Answer 1

Try removing node_modules and reinstalling the dependencies.