You could try to open an auto-save, but I'm afraid your project is lost. As you probably already know, this kind of abrupt shutdown can create many issues and unfortunately, a corrupted file is one of them.
Best regards,
Cyril Dellenbach (Micro) | QA Support Artist | Adobe
Why though? Same just happened to me a few minutes ago. If it was already saved prior to the crash there is no reason why this should occur. My auto save is quite far back so I just lost a lot of work because of this. Its surprising i can find threads with this issue all the way back to 2015.