There is a big problem with Card Scramble

I have been having problems with card scramble.  it seems every time I get close to finishing a level.  When I play my cards and hit play once it gives me the score it freezes up and I cant do anything and I cant finish the game.  I have tried waiting to see if it unfreezes, but no it doesn't I end up having to just quit the game and come back in and try again and it may or may not do it again.