Unknown Archive Version

Hello Everyone. So, I was trying to merge showfiles and when I exited to the "start hog" page all my showfiles said "Unknown archive version". I was advised to reboot. Hog didnt reboot so i had to boot by reinstalling the Hog OS. This was an older version than what was previously running. Booted ok but when i try and load on of my previous showfiles that were backed up they all have "Unknown Archive Version". Every single one of them no matter from how far back. Is this because im running an older version of Hog OS?

Any help on this is really appreciated as we have a show tomorrow!