I'm having a similar problem. Whenever I go to play again I get the loading screen for all of one or two seconds and then it just goes to a blank white screen. Clearing my cache, cookies, and everything doesn't really help. I've tried Chrome, Firefox, and IE and haven't had any luck with them or a different computer. Only weird thing I've found so far is that it'll load on a new account the first time, but after the page is closed and reopened the same error occurs