Disconnect 6/11/2016

Around 10:30 CST I loaded into a game and disconnected from the game. I played a ranked game 5 minutes prior to this without disconnecting or lagging the entire game. Now, I cannot log into League of Legends or contact RIOT support. Everything else on my computer is functioning properly and my internet connection has not been disrupted at all. Could someone get this to RIOT support please to fix the problem. Thank you.