Space between widgets

Hello,
There is a space on my right side widget area that I can not get rid of. The space is between the Amazon affiliate link and a picture.

I have checked in the widget area on the dashboard and the widget area in the theme under customize and there are no other widgets in that spot. They are both identical.

I am not a coder. How can I get rid of this space?

The page I need help with: [log in to see the link]