backup saying "cannot find the file specified" no matter what i do

[Andy4169]

always says ERROR - Host IO error: Os { code: 3, kind: NotFound, message: "The system cannot find the path specified." } IO error from host file system: Os { code: 3, kind: NotFound, message: "The system cannot find the path specified." } Error: IO(Os { code: 3, kind: NotFound, message: "The system cannot find the path specified." })