Apple File Server Missing

I am trying to set up my ATV so that I can source movies from my Macbook media center in another room.
It tells me that my AFS is switched off.
I am in NitoTV in utilities and i am trying to switch it on but it is telling me that it is missing.

How do i correct this?

By default the AppleTV will attempt to connect via the AFP protocol, however most newer AppleTV units will not support this protocol. The SMB protocol can be used in its place by setting up a ‘Manual Share Point’. We have a guide for setting this up at the link below.

 Is there a way to add AFS to the AppleTV?

Yes, but unfortunately most newer AppleTVs will not support AFP.