The zip file looks fine….it has no errors…so the problem will be with the FileZilla transfer type. Try this: in FileZilla go to Transfer -> Transfer Type and choose Binary (note: these steps are for version 3.8.0). Then close Filezilla and open it again (restart). Then try to copy the theme unzipped files again. Let me know how it goes.
Re: How do I upgrade from lite to pro?