Wrong scrolling section

Hi there,

I have done a site and a section (I get it from a “Brix” templates) scrolling separately from the home page. It’s happen once you enter to the site and start scrolling from second sections (Service).
Why is it happen and how to fix it?

One more. Just today I notice how a frame appear at each section at right side and at bottom side.
How to fix it? It doesn’t shows as something

Thanks in advice for your time!

Here is my site Read-Only: