root file "<str>" no longer has its original name "<str>"

  Explanation:  The current root file name does not match the name
  used when the root file was created.  This could happen if you
  copied or renamed the root file, or if the file was created
  using a concealed logical device name and that logical name is
  no longer defined.

  User Action:  Rename or copy the root file back to its original
  name or location, or redefine the necessary concealed logical
  device name in the system logical name table.