I was given an Apple TV 2 awhile ago it is jailbroken on 4.4.4.
It has been crashing a lot also,
So I decided to see if any updates are needed within Nito Tv and Xbmc
When I try to update Nito TV I get this message

Upgrade Finished Successfully !
Restarting lowtide in 3 seconds

E: Could not open lock file /var/lib/dpkg/lock - open ( 13: permission denied )

E: Unable to lock the administration directory ( var/lib/dpkg/ ) , are you root?

I don't understand what this means as Im not to familiar with this stuff

Also Navi X
Gives an error now it says that NaviX is broken.

Any guidance would be greatly appreciated.