Loading game screen won't open.

Whenever i want to play match i can't because there is this issue that happens after everyone is ready at the champion select, when it shows up prapare the batttle is about to begin, screen pops out and the loading game screen doesn't shows up, just kicks me to the deskboard, i click reconnect then happens the same thing, i reinstalled the game like 5 times did everything i could i mean watched vids etc, nothing works on me. PLES HALP ME