[Resolved] Sidebar not showing for Single product

Please, find a child theme solution here: https://purothemes.com/wp-content/uploads/2018/09/polestar-child-wc-single-sidebar.zip

If you’re currently using a child theme, download the above and take a look at the changes I’ve made and integrate them into your child theme.

If you aren’t using a child theme at the moment then you’ll install this child theme from Themes > Add New > Upload Theme. To migrate your settings from the parent to the child, please see: https://purothemes.com/customizer-settings-export-import/.

You’ll need to make a small edit to the functions.php file in the child theme. The easiest would be to remove the polestar_child_body_classes function and replace it with the following:

/**
 * Adds custom classes to the array of body classes.
 *
 * @param array $classes Classes for the body element.
 * @return array
 */
function polestar_child_body_classes( $classes ) {

	// WooCommerce sidebar.
	if ( is_active_sidebar( 'sidebar-shop' ) && ( function_exists( 'is_woocommerce' ) && is_woocommerce() && is_product() ) ) {
		$classes[] = 'woocommerce-sidebar';
		
		if ( get_theme_mod( 'woocommerce_sidebar_position' ) == 'right' ) {
			$classes[] = 'woocommerce-sidebar-right';
		}	
	}

	return $classes;

}
add_filter( 'body_class', 'polestar_child_body_classes' );