Or take the eevee you got from the rocket quest, and train it to evolve into umbreon. Dark moves are very powerful agaist the psychic pkmn from sabrina. Good luck!
Half an hour ago I was playing, and it said that the server would be updated. So that must be what's still going on right now. I wouldn't worry too much, and just check later today. Probably going to need to download a new client version.