Latest Series description

I’m using the shortcode to display the latest series image, but the series description isn’t displayed. I have entered a description on the edit series page.
[latest_series image_class=”thumb” size=”medium” show_title=”true” title_wrapper=”h1″ title_class=”custom-title-class” show_desc=”true” wrapper_class=”custom-wrapper-class”]

The page I need help with: [log in to see the link]