ARAM the timer goes to 0 "prepare for battle" and does nothing

I tried to play ARAM for three times just now, I had same teammates twice in a row. The first time the timer went to 0 and it said to prepare for battle and nothing happened. So people started to exit and I tried to find a match again and I found the match again and met the same teammates again. The timer went to 0 again and it said to prepare for the battle and NOTHING HAPPENED AGAIN. The game did not launch. I tried AGAIN, same thing happened with different teammates. AGH.