I have tried everything in the help section but I can't get the game to work. It loads and then goes to a blank screen. I know it's there I just can't see it. What do I do?

I'm on 11-4 and the points show up on the squares and stay there. The extras at the bottom aren't working I have restarted the level, have left the game and came back and it still does it. I haven't restarted the game completely to see if that helps because I am close to the end. Just thought you should know so it can be fixed.