Sidebar Not Displaying on Any Page

Hello,

My website is https://www.rent-orlando-vacation-homes.com and uses the theme Cubismo. The sidebar does not display at all on either my homepage or any posts/subpages and I’m not sure how to resolve the problem (very basic skills here).

Here is the code for the file wp-content/themes/cubismo_theme/sidebar_homepage.php:

<div id="sidebar">

   <ul>
      <?php
      if ( ! function_exists('dynamic_sidebar') || ! dynamic_sidebar('homepage-sidebar') ) :
      endif; ?>
   </ul>

</div>

And here is the code for another sidebar wp-content/themes/cubismo_theme/sidebar.php:

<div class="four columns omega">
		<?php if ( ! dynamic_sidebar( 'right-blog-sidebar' ) ){

			function widget_custom_layouts($widget){
				return array(
					'before_widget' => '<div class="widget widget_cubismo_widget_'.$widget.' clearfix">',
					'after_layout' => '</div>',
					'before_title' => '<h2>',
					'after_title' => '</h2>'
				);
			}
			the_widget('Cubismo_Widget_Search',array('title'=>'Search'),widget_custom_layouts('search'));
			the_widget('Cubismo_Widget_Categories',array('title'=>'Categories'),widget_custom_layouts('categories'));
			the_widget('Cubismo_Widget_Tag_Cloud',array('title'=>'Tags'),widget_custom_layouts('tag_cloud'));
		}
	?>
</div>

I also tried to manually create a sidebar with no luck wp-content/themes/cubismo_theme/inc/sidebar.php:

<?php
	register_sidebar(array(
	  'name' => 'Right Sidebar',
	  'id' => 'right-blog-sidebar',
	  'description' => 'Widgets in this area will be shown on the right-hand side.',
	  'before_widget' => '<div class="widget %2$s clearfix">',
	  'after_widget' => '</div>',
	  'before_title' => '<h2>',
	  'after_title' => '</h2>'
	));

	register_sidebar(array(
	  'name' => 'Footer Left Sidebar',
	  'id' => 'footer-left-sidebar',
	  'description' => 'Widgets in this area will be shown on the footer left.' ,
	  'before_widget' => '<div class="%2$s" style="margin: 10px 0px;">',
	  'after_widget' => '</div>',
	  'before_title' => '<h3>',
	  'after_title' => '</h3>'
	));

	register_sidebar(array(
	  'name' => 'Footer Center Sidebar',
	  'id' => 'footer-center-sidebar',
	  'description' => 'Widgets in this area will be shown on the footer center.',
	  'before_widget' => '<div class="%2$s" style="margin: 10px 0px;">',
	  'after_widget' => '</div>',
	  'before_title' => '<h3>',
	  'after_title' => '</h3>'
	));

	register_sidebar(array(
	  'name' => 'Footer Right Sidebar',
	  'id' => 'footer-right-sidebar',
	  'description' => 'Widgets in this area will be shown on the footer right.' ,
	  'before_widget' => '<div class="%2$s" style="margin: 10px 0px;">',
	  'after_widget' => '</div>',
	  'before_title' => '<h1>',
	  'after_title' => '</h1>'
	));
if ( function_exists('register_sidebar') ) {
register_sidebar(array(
'name' => 'Homepage Sidebar',
'id' => 'homepage-sidebar',
'description' => 'Appears as the sidebar on the custom homepage',
'before_widget' => '<div style="height: 280px"></div><li id="%1$s" class="widget %2$s">',
'after_widget' => '</li>',
'before_title' => '<h2 class="widgettitle">',
'after_title' => '</h2>',
));
}

Any help anyone can provide to allow my widgets to appear in my homepage or post/subpage sidebars would be very greatly appreciated! If you need other code or information to help resolve the issue please advise.

Thank you!