A problem with dc's?

Today I played a game with friends and two of my lobby friends dc'ed at the very beginning of the game and continued to disconnect through the rest of the game, as well as our mid laner and apparently the enemy jungler in the very beginning. I don't know what exactly caused it, we think it might've been the new infernal amumu skin but just not sure. I really don't want to continue to experience games like this so please look into it. I should mention that no one's ping/computer had problems, we were all using discord just fine with no errors there, it was entirely something with the server.