Is this only happening to me? ( IOS users)

So basically, I am having trouble connecting to my game. Instead of the loading screen, the screen just turned black and seem crushed as I can neither quit the game client or even move my mouse. The twist is that it is not sth I can fix. I tried to fix it, even re-downloading the game does not help. It is not like I can fix it once so ever, and it just happens randomly, which is the worst part, as if I have known it could happen any time soon, I would probably not play ranked. But I can't predict it. Am I the only one who is experiencing this problem?