I solved it thanks to wordpress support.
solution that could be useful to others.
To add a link to a shortcode of an uploaded image
[Services_box animation = “” title = “Mobility” description = “Tomorrow alarm that, salsa Uven trick edia. However, atfringnu cardboard vehicles heat the football “image =” http://sitename.com/wp-content/themes/wild-safari pro / images / ws-icon1.png “]
To make it work as a button, wrap the entire shortcode with a tag