Secure images

I can’t get secure images to work on a page with the shortcode as described in the usage page.

For example, when I use [image-store] a public gallery is displayed. But, [image-store secure=1] or [image-store secure="1"] don’t work.

In fact, adding anything beyond [image-store] breaks the page and prevents the Admin header bar and page footer from loading. It makes no difference which page template or theme I use for this.

Any guidance?

v.3.0.7

Here’s the page: http://www.aeromediagroup.com/secure-images/