Game got totally cancelled?

Hey there folks.

Today i was playing some games. My most recent game, I was playing Jinx being 6/1/3 pretty much winning and carrying the game with Supp = Leona, Midlaner = Cho'gath, Jungler = Amumu, Top = Gnar. Enemy Team was ADC = Ashe, Support = Braum, Midlaner = Brand, Toplaner = Nasus, Jungler = Rengar, got closed around 15.19 UTC+1.

We were dominating, just finished another drake and atm killing Rengar afterwards when the game suddenly crashed and got totally closed without any error message.

Restarting the Client, logging into the game it was as if the game was never existing, I am right now able to start a new game but not to reconnect to my previous game.

What is happening? Riot Server Crash? Come on guys :( Even if I was not winning, this is totally destroying the fun the game provides. You already raised the RP prices. When will we see results for server steadiness?