Opening an old project

I have an old NANOWRIMO project I wrote back in 2011, which I filed away because it was terrible. However, there’s some information I have in document notes that I want to dig up and see if they can be recycled for my current project. The issue at hand is that I can’t open the project even after I updated it and now all my back-ups are related to this recent updated version (yes, I opened it several times so I must have over-wrote all my past back ups, which I suppose I wouldn’t have been able to open in any case). I get the following message: Screen Shot 2016-06-12 at 6.38.51 PM.png. Is there a workaround to get it to open or is my terrible novel kaput?