rnadom game closing(not crash/bug splat)

Is anyone else having the issue where you click either 'your shop' or 'hextech crafting' buttons and your game just vanishes? I wanted to see exactly how many chests/keys I had and it happened..relaunched the game and it did it again. Slightly frustrating..I know they were 'correcting issues' on it the other day but it seems as if its back again...