Why can't i play 2-player in minecraft (x-box360 version)?

We did it all the time with two controllers, and now we can't do it. How do i fix it?

If you play that much, I'm going to guess your controller is out of battery.

You'll need to get new batteries for your controller.

I think you need to connect your xbox to tv using HDMI to play two player maybe you moved something?