404.php

<?php @header( 'HTTP/1.1 404 Not found', true, 404 );

get_header(); // Loads the header.php template. ?>

	<main class="content" itemprop="mainContentOfPage">

		<header class="page-header">

				<h1 <?php hybrid_attr( 'entry-title' ); ?>><?php _e( '404 Error: Page Not Found', 'windsorone' ); ?></h1>

				<?php if (get_field('page_subhead')) { ?>

					<span class="page-subhead"><?php echo get_field('page_subhead'); ?></span>

				<?php } ?>

			</header>

		<div class="page-content">

			Hello world

			<?php do_shortcode('[fl_builder_insert_layout slug="404-error"]'); ?>

		</div>
	
<?php get_footer(); ?>