I got disconnected from my Realm, and then it disconnected the Wi-Fi, so nothing works

I was playing on my Realm, then the game just crashed, it showed 'Disconnected from Server', so I clicked 'OK'. Then it went onto the loading screen, and it froze there, no buttons would work, but then managed to turn the console off. Then when I turn on the console again, it gets disconnected from Wi-Fi.

Now Minecraft is just stuck on the rotating screen thing that happens when starting the game.

Note, I couldn't upload the attatchments directly, because of the no Wi-Fi, so i just recorded them.