Page Titles Not Appearing

Hi

Probably sounds like a really stupid question but my page titles aren’t showing up, I’ve had a look around the forum and everyone else is searching how to hide them, anyone have any ideas whats wrong or the code I need?

Info:

Site: https://www.prorank.co.uk
Issue: Page titles appearing like this: | prorank.co.uk
Pages: /privacy & /cookies etc

1, I have these pages blocked in robots.txt from the sitemap because they are generic pages.
2, The post titles/tag titles are displaying fine i.e; Post/Tag Title | Prorank.co.uk
3, Some other stuff on the page doesn’t work either like the bullet points.

Here’s the code from the page.php file

<?php $mts_options = get_option(MTS_THEME_NAME); ?>
<?php get_header(); ?>
<?php if ($mts_options['mts_breadcrumb'] == '1') { ?>
	<div class="breadcrumb" xmlns:v="https://rdf.data-vocabulary.org/#"><?php mts_the_breadcrumb(); ?></div>
<?php } ?>
<div id="page" class="single">
	<article class="<?php mts_article_class(); ?>">
		<div id="content_box" >
			<?php if ( have_posts() ) while ( have_posts() ) : the_post(); ?>
				<div id="post-<?php the_ID(); ?>" <?php post_class('g post'); ?>>
					<div class="single_page">
						<header>
							<h1 class="title entry-title"><?php the_title(); ?></h1>
						</header>
						<div class="post-content box mark-links entry-content">
							<?php the_content(); ?>
							<?php wp_link_pages(array('before' => '<div class="pagination">', 'after' => '</div>', 'link_before'  => '<span class="current"><span class="currenttext">', 'link_after' => '</span></span>', 'next_or_number' => 'next_and_number', 'nextpagelink' => __('Next','mythemeshop'), 'previouspagelink' => __('Previous','mythemeshop'), 'pagelink' => '%','echo' => 1 )); ?>
						</div><!--.post-content box mark-links-->
					</div>
				</div>
				<?php comments_template( '', true ); ?>
			<?php endwhile; ?>
		</div>
	</article>
	<?php get_sidebar(); ?>
<?php get_footer(); ?>

Any suggestions? Thanks in advance!