Footer issue on my wordpress theme

I am using the natural health theme at nativenaturalremedies.com. The problem is the footer displays fine except when I am in categories. For example, if you were to navigate to the site, select any post from the categories drop down menu on the right side, you would see that the footer stretches across the entire bottom of the page. It doesn’t do that anywhere else that I can see.

The only mod I did was to remove the category menu from the header area of this theme.

Any help would be appreciated.