Unable to Process Request. Try again later.

When I try to purchase movies, tv shows or in app purchases from my app, I will get this message that says my request cannot be processed. I have more than enough funds for it and I have no outstanding itunes debts. And I am totally updated. Turning it off and on doesn’t help. The weird thing is right before I got that message I was able to purchase stuff. Then literally a few seconds later it gave me that message.