League of Legends errors and bugs

Hellow every one, I have some problems that make me can't play league of legends cause of the bugs and errors.

Errors:

1 . You have disconnected from the game, check your connection and try again. (or something like that)

The game tell me i don't have a internet connection and Im talking with my friends on skype and stay on facebook using internet.... League of legends logic.

2 . Game crash BUG Splat.

The game stoped working and it automaticly close and after the game u get 5 penalty games 20 minutes waitting cause of ""you was afk or YOU close the client and f*ck with your bannana""

3 . League of legends client has stopped working.

This error close your game like bug splat..

Riot please fix this problems and make me , and other players, can play the game without penalty games or lose games cause you was 2-3 minutes afk ,and wasn't your fault, and lose farm,kills, xp and other things.....

PECE MAGNUS! THUG LIFE