Apple TV with subscription

I pay for Apple TV every month and it was working for a couple months then all of the sudden stopped working a couple months back. It kept telling me my password was wrong even though I had to put in my password to even purchase the subscription. I wasn’t even able to get in for a while. Now it lets me in (same password), but when I try to watch something, I get a notification on my iPhone that it’s being used in my location, so I click “Allow” and then it gives me a code to enter into my tv but nothing ever pops up for me to enter it into. Just a black screen and won’t play the channel or movie.