All projects and images on Aperture have disappeared.

My Aperture application froze so I had to force quit it, and restart the computer. When I reopened it every project and image for the past two years has dissapeared. I attempted to restore the library and application using time machine, but each one I restored had the same issue. I have also attempted to restore the database using Aperture first aid, but still nothing. I am at a loss as to how to move forward!