Post Title and Info not showing up

I am developing a WordPress accessible website on Genesis! I have installed the WordPress Genesis Accessible plugin and I have customized the Leiden Child theme that you can get here.

On the functions.php page I have also added this code to it…

//* Customize the entry meta in the entry header (requires HTML5 theme support)
add_filter( 'genesis_post_info', 'sp_post_info_filter' );
function sp_post_info_filter($post_info) {
    $post_info = '[post_date] by [post_author_posts_link] [post_comments] [post_edit]';
    return $post_info;
}

However on all of the blog posts none of the titles or author info is showing up! If you wish to view the site’s posts page you can do so HERE.

Thanks in advance for any help.
– Phillip