Facebook App Not Working

I've been trying for a couple of days now to get the facebook app to work on my fan page. After I've enabled both my personal page and my fan page I do see the new "Shop" tab on my fan page. But, when I click on it all I will see is a set of numbers on a white background. I've disabled the app on my personal page and my fan page and then started over many times now, but it never changes the results. Any suggestions on what I'm doing wrong? Thanks very much! -Bob