Marketplace, Realms, Joining Public Servers and character Dressing Room not working.

This bug happened before where I opened Minecraft and it would sign me in to my Microsoft Account, but I can't join public servers as it gives me an error saying my login couldn't be validated, it also says that the game was 'unable to connect to Realms'. My skins won't load in the dressing room and I can't edit them at all (being left on default). I also can't open marketplace and keep getting an error. I've checked the app for updates.