How to recover a page you deleted:
Navigate to create > pages (where you can view your main & sidebar navigation and app pages).
Scroll to the bottom of your app pages.
Below the Built-in Pages heading, you will see a small trash can 🗑️.
Click Trash.
The pages that you can restore will popup in a list. You can search the trash or scroll to find the page you’re looking to restore.
Click Restore.
You should see your page re-appear 🎉.
Content items deleted from Create > Content can also be recovered