I don’t know if anyone still needs this or if the plugin is being updated. But I needed it as well and figured out where the problem is.
To fix it. Open up the Plugin Editor and navigate to — simple-retail-menu/js/jsrm-admin-script.js
scroll down a little bit until you get to the Image Uploader section
below window.sent_to_editor = function(html)
the code says this
imgurl = jQuery(html).attr(‘href’);
simply replace that line with this
imgurl = jQuery(‘img’,html).attr(‘src’);
And it all should work now