tbp project file not opening on Toon Boom studios

I was animating a project on Toon boom studios and I saved it, then out of nowhere the screen freezes and so I shut the laptop off. Once I turned it back on and tried to reopen the project it stated “project.tbp is not a valid Toon Boom file”. I spent a good while on this project, and from the fact that its still here (just that its a different file format) makes me wonder if the animation can still be opened somehow.

If anyone knows how to fix this it would help so much.