Some of the games do not work
I played a game recently where the down cards were not able to flip, just fyi
that can happen if during a game you don't just click the cards into place but you drag them also. You have to click all of them or drag all of them. Good luck!
If that isn't what is happening though...post again and let us all know or click on Contact Us at the bottom of the page and tell Yuriy who is administrator of the game.