You can restore a project you have deleted. You can only do this within 30 days of the time you deleted the project.
Click the Home button.

You will see a list of your projects.
Click the Trash button in the list on the left.

Click the menu button for the project you want to restore.
Click Restore from the menu.

The project will move back to your active project list.

You will see a list of your projects.
Click the Trash button in the list on the left.

Click the menu button for the project you want to restore.
Click Restore from the menu.

The project will move back to your active project list.