Apply orbit file ERS. Type: OperatorException

This occurs when trying to apply the orbit correction file. Message: error in opening zip file. Any idea?

Have you checked the zip file? The zip command-line program (linux and macOS,
Windows with Cygwin, Msys2, of wsl[2] linux) has an option to test a zip archive – see man zip or zip --help for the name of the test option on your version (could be -t, -T, --test, etc.).

No I did not. I will check this step. Thank you so much!