I just checked again and this option doesn’t work in customizer.
I can add an image for contact form but it’s not loaded.
For the remaining about the widget, sorry but I really don’t understand what you are talking about…
Check options? Which options?
ge_stylesheet_directlry_uri – where is that?
For my child theme functions.php I only copied the code from your own page here:
Child Themes and Its Importance