Week 2 assignment - This notebook is read mode only

I am facing an issue in week 2 assignment of linear regression, shows a blank page as you can see in the screenshot below.
Your kind response will be highly appreciated.

Try these:

  1. Logout and then login
  2. Use Incognito/Private window
  3. Clear the browser’s cache
  4. Use Google (if not using)
  5. Try different device

Let us know if any of these doesn’t help.