Digimate Photo Bank not working!?

My digimate [external harddrive/storage] has been working fine for a few years now, but lately it had been coming up with "scan for errors" everytime I plugged it in to my newer laptop, it still worked fine. Now when I go into it on any computer it says that the folder is empty, but if u look at the properties it's still full of my stuff...how can I recover the documents & photos from this?