App infinite crashes

App is infinite crashing when switching Game Center accounts.

Steps:
1. Be logged into account "X"
2. Play some
3. Go to phone settings - Game Center - log in with different Game Center account
4. Go back to the blackjack app
5. Go back to phone settings
6. Do phone settings - Game Center - log in with different Game Center account
7. Open blackjack app

Infinite crash.

Other feedback:
1. It doesnt save your status based on game center account. When I logged in with the second account it still showed my old accounts amount
2. No ability to select "even money" when you get a blackjack and the dealer shows an ace

classical-guitar about Blackjack Pro: 21 Vegas Casino, v1.0.3