WD cloud access to files

My Cloud took a power surge hit and will not power up the drive. The 12v coming to the unit is good. I removed the drive and placed it into a hard drive enclosure and it shows all the folders but says they are all empty, which is not the case if you look at the drive/folder properties. Seems like an encryption issue. The hard drive works fine but I can’t access the files on it so what good is having a backup drive? Any help is appreciated.