3D FlipBook - After installing the plugin, I am encountering a problem. When I insert the shortcode into the page the appropriate 3D

After installing the plugin, I am encountering a problem. When I insert the shortcode into the page the appropriate 3D Flipbook presentation shows up on the page without problem when I am logged in as the WordPress Administrator, however for everyone other than those with Administrator level access they are getting a message ” Item is not found ” in place of the presentation. Any suggestions on how to remedy this one?