When Xbox one last went down (25th or 26th of July) my Xbox won't let me open anything on my Xbox. It says that I need to try again soon, and that I need to make sure that I'm connected to Xbox live. But even if I'm not connected to Xbox, why can't I open any of my apps?! Also I know I'm connected to Xbox live as I get party invites from my friends but I can't join, as my Xbox won't let me open any apps!!!!!!! I have no idea what to do!