Game wont start for me and partners

WE started a game this morning and our last teamate picked his champion at the very last 000,1 second and game never started. I don't know if its cause of this. But we closed game and relog, then we all have the same message ''Game abandonned, you have left a game in progress, please reconnect to the game.'' We click on reconnect button and nothing happens. We are stuck there for several minutes already. Even reloged many times. What to do ?