Score save nowhere to found

Hello all, I was working on an online score on my account when the internet went out but I still kept working on the score. I finished what I was doing for the day so I "saved" the score and thought all was good. Shortly after, my internet came back so I opened the score and realized that it the score had been "reset" to what it was when I had initially opened it before I started working on it. I tried to "open recent" (which had worked in showing what i had done when I tried to open the score still offline) and it brought up the online score which had none of my revisions.

There was a message saying something along the the lines of a separate file for the score on my computer but I can't find it anywhere. I worked for 3 hours and now I can't remember what I did. Any help would be appreciated, thanks.