Recently, when I came back onto Minecraft, I found that one of my worlds was missing (also happened to be my only one.)

Recently, when I came back onto Minecraft, I found that one of my worlds was missing (also happened to be my only one.) However, when I followed the instructions to recover the world, the link I was given to help recover the world was invalid, and because of this, I was unable to recover my world. Even when I was logging on to this website to give feedback, I was given a very difficult time logging in. Overall, I want my world back (and I'm very upset about this), and I want the process to recover it to be made much, much easier.