I lost my score from an error.

I had finished a score on MuseScore Studio and I wanted to save and publish it online. An error occurred saying I couldn’t publish my score at the moment so I tried to save it on my computer temporarily, but it didn’t work and when I closed out I realized it didn’t work. I went back in to MuseScore Studio and my score was there but it tole be it was invalid and I couldn’t access it. Is there any way that I can get access back to my score or have I lost it forever?