Deleted scores

Yesterday, I had edited a score I downloaded, and started a new score from scratch. One of those is saved to my laptop but not on my musescore and it won't let me access it because it's saying that it is not a thing. I know that I had saved both projects before closing the app and now they're both just GONE. I spent a combined 5-6 hours editing and creating them. Is there any way to get them back?