My airplay and mirroring for my appletv isn't working.

My airplay mirroring for my apple tv isn't working.

When I try to mirrir, two things happen:

1. I see is a house, with a musical not inside. Music from my library plays but nothing else.
2. When i try to select my location (Living Room) from Display or the Menu at the top of the screen, I receive a message that says cannot connect to Living Room. Both are on the same network.

Please help. Thank you.