tryn to join the summoners rift and cant do it.

After picking a champion and start the game it goes black and i tried to re login and do stuff, it says the game crashed and i've been trying for 3 days now. Riot, i believe that you are actually reading this and if you guys read it plz reply. I have been waiting for a single reply for 3 days now. I've re downloaded league already and still does it. I also got a low priority so plz do something too.