only my League Of Legend doesn't work?

hi! im in the eu nordic& east server and it has been 2 hours, I think, and the game just doesn't work and I don't know if it is just a problem with my pc or is it with riot. I entered in a ranked game and after champ select and it just gave me a white screen and got me out of it. I got Mac OS..and I have to say that I tried to get into the game several times, but it just didn't work and now when I open LOL it does not connect me. I uninstalled it and now my page to download it again doesn't work:))))))). Just my problem or?[sg-ahri-1]