Can't watch games online

[sladkiy_malchonka]

Since "watch" changes i can't start to watch games. A waiting window appears and at best the game loads with an eternally black screen. Gaame may crash or generaly load with "<team> win" when i started bot match. I don't know what to do. I even uninstall and whe install again the game.
P.S. Whis window may remain for 30+ mins.
P.P.S. That how game replay looks like for me.