JezK

Edit File: page-template-blank.php

<?php
/*
Template Name: Blank Page
*/

get_header();

$post_id              = get_the_ID();
$is_page_builder_used = et_pb_is_pagebuilder_used( $post_id );
$container_tag        = 'product' === get_post_type( $post_id ) ? 'div' : 'article'; ?>

<?php if ( ! $is_page_builder_used ) : ?>

<?php endif; ?>

<?php while ( have_posts() ) : the_post(); ?>

<<?php echo $container_tag; ?> id="post-<?php the_ID(); ?>" <?php post_class(); ?>>

<?php if ( ! $is_page_builder_used ) : ?>

<h1 class="main_title"><?php the_title(); ?></h1>
				<?php
					$thumb = '';

$width = (int) apply_filters( 'et_pb_index_blog_image_width', 1080 );

$height = (int) apply_filters( 'et_pb_index_blog_image_height', 675 );
					$classtext = 'et_featured_image';
					$titletext = get_the_title();
					$alttext = get_post_meta( get_post_thumbnail_id(), '_wp_attachment_image_alt', true );
					$thumbnail = get_thumbnail( $width, $height, $classtext, $alttext, $titletext, false, 'Blogimage' );
					$thumb = $thumbnail["thumb"];

if ( 'on' === et_get_option( 'divi_page_thumbnails', 'false' ) && '' !== $thumb )
						print_thumbnail( $thumb, $thumbnail["use_timthumb"], $titletext, $width, $height );
				?>

<?php endif; ?>

<div class="entry-content">
					<?php
						the_content();

if ( ! $is_page_builder_used )
							wp_link_pages( array( 'before' => '<div class="page-links">' . esc_html__( 'Pages:', 'Divi' ), 'after' => '</div>' ) );
					?>
					</div>

<?php
					if ( ! $is_page_builder_used && comments_open() && 'on' === et_get_option( 'divi_show_pagescomments', 'false' ) ) comments_template( '', true );
				?>

</<?php echo et_core_intentionally_unescaped( $container_tag, 'fixed_string' ); ?>>

<?php endwhile; ?>

<?php if ( ! $is_page_builder_used ) : ?>

</div>

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

<?php endif; ?>

</div>

<?php

get_footer();