Corrupted Character Animator project

Hey all! I’ve been a hardcore user of Ch for years, and just recently ran into this issue. I was trying to import an (admitedly) large photoshop image sequence into Ch to use as a background, and the program crashed and apparently has completely corrupted the character animator file. Whenever I try to open the file I get some sort of “damaged project” popup and no option to do anything else. Even more confusingly, the popup is different every time. 

I searched around and it seems like one of the only ways to resolve this is to have someone from the Ch team ‘roll back’ whatever I was doing in the project at the time. Anyone available and able to do that for me? I have hours and hours of work setting up puppets and scenes in this project and would really love not having to do it all over again.