searchform not showing!

Hi All,
I have a small problem with a searchform on a custom theme I have built! The website in question is https://www.commsaxis.com/ for some reason the searchform is not showing whatsoever on all browsers and after clearing cache multiple times!

In functions.php i have added: add_theme_support( 'html5', array( 'search-form' ) );

My searchform.php is:

<form role="search" method="get" class="search-form" action="<?php echo home_url( '/' ); ?>">
	<label>
		<span class="screen-reader-text">Search for:</span>
		<input type="search" class="search-field" placeholder="Search …" value="" name="s" title="Search for:" />
	</label>
	<input type="submit" class="search-submit" value="Search" />
</form>

in my header.php wrapped in a div is: <?php get_search_form( $echo ); ?>

and finally in search.php again wrapped in a div is:

<?php
    if (have_posts()) : ?>
        <h2>Search results for: <?php the_search_query(); ?></h2>
        <?php
        while (have_posts()) : the_post();
          get_template_part(‘content’, get_post_format());
        endwhile;
        else :
        echo ‘<p>No content found</p>’;
    endif;
?>

Have I missed a trick somewhere at all as im sure this is correct having used this multiple times before.
Many thanks. Phillip