DirecTV App Doesn't Work on iPad Air - DirecTV

When I first got DirecTV a year ago, I could get the app to work once in a while. Now it never works. Every time I get "Error: External System Failure". I've turned on the "Clear Login at Startup", uninstalled and reinstalled the app several times, to no avail.

Fix your issue, DirecTV! I bet my local cable TV company app works.