Can't get in

[Lattz]

Hi guys, I recently bought Arma 3 and wanted to try Altis life server. I found this, and I registered on the page, and when I try to connect to the server an error pops up, saying something, and I cant join.  Please help!

-Lattz

 

[Edgar Ville]

 saying something, 

What does it say?

 

[Lattz]

You are not signed by a key accepted by this server, it says.

 

[Lattz]

What does it say?

You are not signed by a key accepted by this server, it says.