I accidentally deleted the game now I have to start over. Is there any way I can restore my game?

We already have an answer for a similar question which you can see here:
I deleted my June’s journey app by mistake! Is it possible to reinstate..

If you have more answers to add you can do that below.

If your game was connected to Facebook, it is saved in the cloud. All you have to do is connect your game to Facebook and it should ask you which game you want to keep. I think Apple has an auto save feature, too. If you have trouble, contact customer support for assistance through the "help" button in the game settings (green gear icon). Helps if you have the game ID for the original game.