Classifieds shortcodes causing layout issues

I created a page called Classifieds with the slug "classifieds-animals" and posted a link to the page on the navigation bar. The page is using the short-code to display the category lists of the classifieds ads. However, the short code is causing the page layout to break in the sidebars and footer areas. If i take the short code out, then the layout works fine but if i put it back in the page breaks again.