Unable to Connect to World Error Message (Realm)

So I have a realm named "peters world" that I've been playing on a lot lately but today it began giving me this error message saying unable to connect to world. My WiFi is wired, I restarted the Xbox, and uninstalled then reinstalled the app, but nothing worked. I have another realm that I am able to enter, but for some reason I can no longer enter the former realm.