Sidebar not loading in Shop Page

Hello Everybody

I am quite desperate here trying to solve this. I am customizing a Tisson Pro Theme to be WooCommerce ready (it is not). I already did what is suggested related to “Third party / custom / non-WC theme compatibility”, doing it in my own Child-Theme, and 1 million things more… But the sidebar still looks not loading in the Shop Page! I inspected the code, and looks like the problem is the following;

woocommerce.php

<?php
get_header();
$sidebar = mfn_sidebar_classes();
?>
<!-- Content -->
<div id="Content">
	<div class="container">
		<!-- .content -->
		<?php
			//open div
			if( $sidebar ) echo '<div class="content">';
			//get woocommerce content
			woocommerce_content();
			if( $sidebar ){
				//close div
				echo '</div>';
			} else {
				echo '<div class="clearfix"></div>';
			}
		?>
		<!-- Sidebar -->
		<?php
			if( $sidebar ){
				get_sidebar();
			}
		?>

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

The code is not entering if( $sidebar ), somehow I cannot figure out why! I tried everything with no luck.

Please if you could help me I will really appreciate it 🙂