Hello
If you have Linux OS, (ubuntu or ...) reboot the computer and go to GRUB bootloader and check disk for troubleshooting.
or Scan hard drive for Bad Sectors or Bad Blocks and inform OS not to use bad blocks for storing data.
If my guide helps you please send me 0.003 BTC instead of your generous 1 BTC

The disk controller is physically damaged and the disk itself has been removed from its enclosure and so he can't even plug it in and expect it to work let alone run a file system scanner on it. And a bad filesystem rarely causes lost data.