Need a bug fixed

I have a google ad block sitting in the template of my Wordpress theme, which is the default template for a number of category pages.

I suspect the random google ad is causing the position of the blog posts to be arranged in a disorderly manner. I need someone who is well versed with Wordpress to locate this google ad and remove it, or find a solution to fix the disorderly arrangement of blog posts in a default template that comes preinstalled with the theme.

I have set up a staging site for the right person to have a play with if need be.