Oh really? How come it installed fine the second time from the same file?
It's well-known that installation of FitGirl's repacks can fail, and the recommendation is exactly that one don't touch the computer while it's going on, and retry again if it fails. Mock yourself for not knowing this, as this very thread contains more ‘anecdotes’ about the same.
It's some kinda super wonky compression that gives extreme space savings but is so fragile that the result isn't guaranteed, which is precisely why it isn't widely used.