Sidebar on Single.php

Can anyone help me put a sidebar on this page – https://www.philrealty.ph/of-space-life-and-art/? It’s single.php. I cant make it work. Any help will greatly appreciated.

<?php get_header(); ?>

<?php 

	global $ewf_theme_settings;

	$page_blog = ewf_get_page_relatedID();
	$page_blog_sidebar = ewf_get_sidebar_id( $ewf_theme_settings['blog']['sidebar'] , $page_blog);
	$page_layout = ewf_get_sidebar_layout( $ewf_theme_settings['blog']['layout'], $page_blog );

	// echo '<br/>### Page blog ID:'.$page_blog;
	// echo '<br/>### Page Layout: '.$page_layout;
	// echo '<br/>### Page Sidebar: '.$page_blog_sidebar;

	switch ($page_layout) {

		case "layout-sidebar-single-left":
			echo '<div class="ewf-row">';
				echo '<div class="ewf-span4">';

					dynamic_sidebar($page_blog_sidebar);

				echo '</div>';
				echo '<div class="ewf-span8">';

					if ( have_posts() ) while ( have_posts() ) : the_post();
						get_template_part('templates/blog-item-default');
					endwhile; 

				echo '</div>';
			echo '</div>';
			break;

		case "layout-sidebar-single-right":
			echo '<div class="ewf-row">';
				echo '<div class="ewf-span8">';

					if ( have_posts() ) while ( have_posts() ) : the_post();
						get_template_part('templates/blog-item-default');
					endwhile; 

				echo '</div>';
				echo '<div class="ewf-span4">';

					dynamic_sidebar($page_blog_sidebar);

				echo '</div>';
			echo '</div>';
			break;

		case "layout-full":
			echo '<div class="ewf-row">';
				echo '<div class="ewf-span12">';

					if ( have_posts() ) while ( have_posts() ) : the_post();
						get_template_part('templates/blog-item-default');
					endwhile; 

				echo '</div>';
			echo '</div>';
			break;

	}

?>

<?php get_footer(); ?>

I want similar to this: https://www.philrealty.ph/page-with-sidebar/ but this one was made from Pages not php

Thanks in advance!