Need Help With Ranning server (basic things)

when i start my server and my frind try to log in it say that the server is under update but it not all is ranning and works good
my ip server is from Hamachi and i even change ip server with ipinput so pls help (btw need help with others things too)

You may post it in the right section
[Only registered and activated users can see links. Click Here To Register...]

check your version