double loop

<div class="owl-carousel" >
    <?php
      $args = array (
        'posts_per_page' => 3,
        'cat' => '-36'
      );
    $entradasDestacadas = new WP_Query($args);
    if($entradasDestacadas-> have_posts());
      while($entradasDestacadas-> have_posts()) : $entradasDestacadas-> the_post();
      $do_not_duplicate[] = $post->ID;
    ?>
    <?php get_template_part( '/template-parts/blog-entries-featured', get_post_format() ); ?>
    <?php
      endwhile;
      wp_reset_postdata();
    ?>
    </div>

    <div class="not-featured">
    <h3>Entradas Anteriores</h3>
        <?php
      $paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
        $args = array (
          'cat' => '-36',
          'paged' => $paged,
          'posts_per_page' => 6,
          'post__not_in' => $do_not_duplicate
        );
      $entradasAnteriores = new WP_Query($args);
        if ($entradasAnteriores-> have_posts() ) :
            /* Start the Loop */
            while ($entradasAnteriores-> have_posts() ) : $entradasAnteriores-> the_post();
          if ( in_array( $post->ID, $do_not_duplicate ) ) continue;
      ?>
        <?php get_template_part( '/template-parts/blog-entries', get_post_format() ); ?>
   <?php
  endwhile;
  wp_reset_postdata(); ?>

  <div class="pagination">
    <div class="btn nav-prev"><?php next_posts_link(__('Más antiguas', 'thematic'),$entradasAnteriores->max_num_pages) ?></div>
    <div class="btn nav-next"><?php previous_posts_link(__('Más recientes', 'thematic'),$entradasAnteriores->max_num_pages) ?></div>
  </div>

 </div>

    <?php
        endif; ?>