Realms Upload and Reset both "Failed"

I bought my realm not too long ago, had an issue uploading it, but it eventually uploaded when I made both the original world and the realm have the same setting. Now, 2 weeks later, I downloaded the realm, changed some settings, and am trying to upload it. Every time it fails. I have tried uploading a brand new world as well as the original too, but neither works. I don't have screenshots yet, I'll upload those later. Any help would be appreciated.