[League of Legends]Log-In Problem.

Hi,
i have a problem if i want to log in League of Legends but the Servers are "unavailable" but if i press up down left right up up down down they are online and if i start and log in it says i cant connect with PvP.Client.net ..
HelP

Eh ... dont worry League of Legends is "unavailable" because since the game update. Add a new character. [Only registered and activated users can see links. Click Here To Register...]

Thanks :) do you know how long they are unavailable