404 error page not found when clicking older posts

Hello,

First of all I would like to say that I love the theme. It works perfect for what I want to do. I’m having problem with page navigation. When I scroll down to the bottom of the page and click older entries, I get taken to a 404 error page. I’ve tried activating another theme, disabling all plugins, and switching permalinks back to default. Is there a way to correct this or even remove the older post button? My website is

Thank you for you time.

Zack