Facebook cannot find my Unity data file.

When I made an app on Facebook using the page http://platypusinferno.com/bbloccksbasic.html as the canvas page url. It works fine if I go to that url however when I try to view the app on Facebook it says "Invalid data file" and will not load. Any suggestions?

Hello, I’m like the same problem. I have looked in many places and so far nothing. If you can help please let me know.