View file StuffPost/stuffpost/sidebar-woo.php

<?php
if ( is_active_sidebar( 'sidebar-woocommerce') ) { ?>
  <div class="sidebar col-lg-3 mt-5 mt-lg-0 ml-lg-4 border-left" data-sticky-container>
    <?php dynamic_sidebar( 'sidebar-woocommerce' ); ?>
  </div>
<?php } ?>