Icon display issues

Hi!
I am having display issues on http://www.lassanamagassa.com/research/publications/ I believe it is a bug. Basically what has happened is that I selected a icon while creating the package. When I insert a package, I selected the bluebox them and save. When I preview the page (see link above) I see the icon behind the blue download text and frame associated with the theme.

I was also wondering how to I “unselect” an icon. I was looking to do that to resolve the issue but I could not figure it out.