I thought your plugin might be the answer for one of my clients, however when I tried it out in sidebar, an error message displayed in the sidebar, with the image displayed below it. Here is a screenshot of the message:
The only data I entered into the widget was the image URL (i.e. no title or anything else). Could this have caused any issues? I am using a child theme of the Responsive theme. I inserted the widget into the sidebar of the inner part of the site (not the homepage).
Thank you so much,