Hey Scrimmy123,
Like what Eprosync mentioned, i'll need more info.
From what you described, it seems like all you got was a manifest file in the folder, which means that everything else in the zip file is not present.. The only explanation I can think of at the moment, is your antivirus might have deleted the files/folders. So you'll need to add it to the list of exceptions if you can.
Hopefully that helps.