The last back up was 6 days ago. The error message says 'an unknown error occurred while opening the project'. So I looked on here but the best advice was to try to import the project into a new project. I tried this but it didn't work. I then clicked on import a sequence and the bar got about a fifth across before halting indefinitely, so that didn't work either. What went wrong? Can it be fixed?
I am trying to reconstruct using the rendered video but I can't get them in a new sequence in order now!