This project is invalid or corrupt and..

I currently published my file for review on 8/27 and have not done any changes to it. When I access the file now it gives me "This Project is invalid or corrupt and.." I did recently updated my Storyline software and this is what is happening. 

I checked the properties of the file. I have not been able to access it but it says i modified it today? 

I am needing help if anyone can assist with this.