"ProjectData" can't be found - Logic deleted my project

Hey guys,

When I open my Browser and look at the Project pkg, the project file itself is 800 MB, which means it obviously holds the information within it. But when I open it, Logic Pro X requires me to create a new track, as if I had just opened a new template from scratch. When I try to revert to my most recent version, it gives me the following error:

“ProjectData” couldn’t be moved to “000” because either the former doesn't exist, or the folder containing the latter doesn't exist.

Other projects will open, but not this one. I've found a few posts online that explain where these files are, and there are reverted folders with the information in it, but for some reason the program won't open my project. This is extremely frustrating as I didn't do anything but always save my project as well as usually open from auto-saves anyway. It's never done this to me before, and I had a nearly-finished song to take to the studio and now I can't open the file.

I'm running a late 2012 Mac Mini, full specs, Logic Pro X. Use it mostly for production, so not too many viruses. Any thoughts? I could really use someone's expert advice, thanks!