Problemas com sistema de comentários no blog

Boa noite! Preciso de uma ajuda! Estou desenvolvendo um sistema de comentários nativo no WordPress. Mas quando eu deixo os comentários e clico no botão "Comentar", não faz nenhum registro de comentários no WP, tão pouco os comentários que não são exibidos. Tem alguma coisa que esteja fazendo de errado e que seja possível resolver?

Segue o código abaixo.

Obrigado!

<?php

/*

Template name: Header Sub

*/

get_template_part('templates/header','sub'); ?>

<div class="section section-blog-interna">
 <div class="container container-bread-crumbs w-container w-hidden-tiny">
 <ul class="ul-breadcrumbs w-clearfix w-list-unstyled">
 <?php wp_custom_breadcrumbs(); ?>
 </div>
 <div class="container container-header-post w-container">
 <div class="header-post-esq">
 <h3 class="h3-categoria-post"><?php the_category(); ?></h3>
 <h1 class="h1-titu-post"><?php the_title(); ?></h1>
 <h3 style="color:gray;font-size:18px;line-height:120%;"><?php the_subtitle(); ?></h3>
 </div>
 <div class="header-post-dir w-hidden-medium w-hidden-small w-hidden-tiny">
 <div class="postagem-header">POSTAGEM: <?php echo get_the_date(); ?></div>
 <div class="comentarios-header"><?php comments_number('0 Comentários', '1 Comentário', '% Comentários' );?></div><a class="share-header" href="#">SHARE</a></div>
 </div>
 <div class="container container-post w-container">
 <img class="main-banner-post" sizes="(max-width: 1100px) 100vw, 1100px"><?php the_post_thumbnail(); ?>
 <div class="box-txt-post">
 <p class="paragraph"><br>

 <?php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>
 <div <?php post_class() ?> id="post-<?php the_ID(); ?>">
 <div class="entry">
 <?php the_content(); ?>
 </div>

 </div>
 <?php endwhile; endif; ?></p>

 </div>
 </div>
</div>

<div class="section section-veja-tambem">
 <div class="container w-container">
 <div class="row-vejamais w-row">

 <?php $args = array(
 'numberposts' => 3,
 'category' => 0, 'orderby' => 'date',
 'order' => 'DESC', 'include' => array(),
 'exclude' => array(), 'meta_key' => '',
 'meta_value' =>'', 'post_type' => 'post',
 'suppress_filters' => true
 ); //array('post_type' => 'page', 'showpages', 'numberposts'=>100);
 $my_posts = get_posts($args);
 ?>

 <?php if($my_posts) : foreach($my_posts as $post) : setup_postdata($post); ?>

 <?php //$id_parent = wp_get_post_parent_id(get_the_id());
 //if($id_parent == 27):
 $img_url = get_the_post_thumbnail_url(get_the_id(), 'full');

 ?>

 <div class="col-veja w-col w-col-4 w-col-medium-4">
 <?php the_post_thumbnail(); ?>
 <a class="btn-veja-tambem w-button" href="<?php the_permalink(); ?>"><?php the_title(); ?></a>
 </div>

 <?php //endif;
 endforeach; endif; ?>

 </div>
 </div>
</div>

<div class="section">
 <div class="container container-form-comentario w-container">

 <?php if(comments_open() ) : ?>

 <div class="form-comentario w-form">
 <form class="w-clearfix" data-name="Email Form 2" id="email-form-2" name="email-form-2" action="<?php echo get_option('siteurl'); ?>/wp-comments-post.php" method="post">
 <h2 class="h2-comentario">DEIXE O SEU COMENTÁRIO</h2>
 <label class="label-comentario" for="comentario">Comentário</label><textarea class="txt-area-comentario w-input" data-name="comentario" id="comentario" maxlength="5000" name="comentario"></textarea>
 <input class="input-comentario w-input" data-name="Nome" id="Nome" value="<?php echo $comment_author; ?>" maxlength="256" name="Nome" placeholder="Seu nome*" required="required" type="text">
 <input class="input-comentario w-input" data-name="Email" id="email" value="<?php echo $comment_author_email; ?>" maxlength="256" name="email" placeholder="Seu e-mail*" required="required" type="email">
 <input type="submit" class="btn btn-comente w-button" value="comentar">

 <?php comment_id_fields(); ?>
 <?php do_action('email-form-2', $post->ID); ?>

 <div class="checkbox w-checkbox"><input class="w-checkbox-input" data-name="Checkbox" id="checkbox" name="checkbox" type="checkbox"><label class="label-checkbox w-form-label" for="checkbox">LOREM IPSUM AENEAN SOLL IPSUM AENEAN SOLL</label></div>
 <div class="checkbox w-checkbox"><input class="w-checkbox-input" data-name="Checkbox 2" id="checkbox-2" name="checkbox-2" type="checkbox"><label class="label-checkbox w-form-label" for="checkbox-2">LOREM IPSUM AENEAN SOLL</label></div>
 </form>
 <div class="w-form-done w-hidden-main w-hidden-medium w-hidden-small w-hidden-tiny">
 <div>Thank you! Your submission has been received!</div>
 </div>
 <div class="w-form-fail w-hidden-main w-hidden-medium w-hidden-small w-hidden-tiny">
 <div>Oops! Something went wrong while submitting the form.</div>
 </div>
 </div>
 </div>

 <?php else : ?>
 <h3>Os comentários estão fechados</h3>
 <?php endif; ?>

 <div class="container container-comentarios w-container">
 <h2 class="h2-comentarios"><span class="num-comentarios">0</span> comentários</h2>
 <ul class="ul-comentarios w-list-unstyled">

 <li class="li-comentarios w-clearfix">

 <?php if( have_comments() ) : ?>
 <h3 class="h3-comentarios"></h3>
 <p class="p-comentario"><?php wp_list_comments('avatar_size=64&type=comment'); ?></p>
 <?php endif; ?>
 <div class="data-comentario"></div><input type="submit" class="btn btn-comentario w-button" value="veja mais">

 </li>

 </ul>

 </div>
</div>

<?php get_footer(); ?>