Reinstall question

Make sure your account is hooked up to your Google Play account for Android or your Game Center account for iPhone. You will know this because a little pop up will show at the top as the game is loading. Or from inside the game you can go to achievements and see the game center or Google play achievements. I know that does not help you if you can't open the game. Sometimes the game won't launch because your device does not have enough memory, maybe consider removing applications that you are not using or changing settings on items that use a bunch of storage like, photos, videos, books, music or a big one for me audiobooks.

Let us know if these tips work. When in doubt I would suggest not deleting the app. If your account is not connected it will be orphaned as a guest account if not connected.

Still no luck getting it to open. Is there any way to save it if it isn't connected to the Game Center?

I'm using an iPhone and not receiving any type of error message. It just closes/crashes immediately.

Sorry... it's a 6S running version 11.2.2, model MG4W2LL/A.

Try to uninstall all other apps, especially tv, radio or media like youtube.
Press Switch Off button, when switch off menu appear press long the Menu button (the button bellow screen) until the switch off menu dissapear. Then switch off the device. Switch ON and try again.
Let us know if is working.

If not, do you have access to other iphone ?