Header Missing From Pages and Posts

Hi!

Here is my site: http://martinsenconstruction.com

As you can see, my header is present on the home page, but that is it – it is missing from all the posts and pages. Any idea how I can fix this?

The code <?php get_header(); ?> is present on the index.php, page.php, and post.php files.

Please help me!

Thanks! Courtney

p.s. this is the Elegant Real Estate theme that I purchased on ThemeForest