Game crashing without match showing in matchhistory

Hey everyone,

I just played a ranked match. It crashed at min 15 or 20. I tried to reconnect sometimes and then to login in again and reconnect. It always tried to load but I only have a black screen. The champion pics aren't shown. After 5-10 tries I was just put back into the frontpage without the match showing up in my matchhistory. No leave, no lose or victory. Its just gone.

This also happend once a week or so ago. Hope you can do something about it.

Best Regards Ratkes