I realized that it was a conflict with Disqus, the comment plugin for Blogs that overwrites WordPress’s default commenting system. I found a code that allows the reviews to be shown on products and Disqus on posts. Can you let me know if this will have any conflicts on the site?

add_action('the_post', 'sb_remove_woocommerce_disqus', 10, 2 );
remove_action('pre_comment_on_post', 'dsq_pre_comment_on_post');

function sb_remove_woocommerce_disqus( $post, $query ) {
global $post, $wp_query;

if ($query->is_main_query() && $post->post_type == 'product') { 
    remove_filter('comments_template', 'dsq_comments_template');
}
}