How to add a search menu in WordPress (WooCommerce plugin)?

Question

WordPress

Hello, there are these files:


and there is this code for the output of goods:

<?php
                    $loop = new WP_Query( array(
                        'numberposts' => -1,
                        'posts_per_page' => 40,
                        'orderby' => 'menu_order',
                        'order' => 'ASC',
                        'post_type' => 'product',
                    ));

                    while ( $loop->have_posts() ): $loop->the_post(); ?>
                    <div style="display:inline-block;" class="block">
                        <div style="background-image: url(<?php the_post_thumbnail_url(); ?>); width:300px; height:300px; background-size:cover;" class="post-th"></div>
                        <div class="some"><a href="<?php the_permalink(); ?>">
                        <?php the_title(); ?>   
                        </a></div>
                        <div class="some"><?php the_excerpt();?></div>
                        <div class="price"><?php woocommerce_template_loop_price(); ?></div>
                        <?php woocommerce_template_loop_add_to_cart(); ?>
                    </div>

                <?php endwhile; wp_reset_postdata(); ?>

and there is this product search code:

<form role="search" method="get" class="woocommerce-product-search" action="<?php echo esc_url( home_url( '/' ) ); ?>">
                        <label class="screen-reader-text" for="woocommerce-product-search-field-<?php echo isset( $index ) ? absint( $index ) : 0; ?>"><?php esc_html_e( 'Search for:', 'woocommerce' ); ?></label>
                        <input type="search" id="woocommerce-product-search-field-<?php echo isset( $index ) ? absint( $index ) : 0; ?>" class="search-field" placeholder="<?php echo esc_attr__( 'Search products&hellip;', 'woocommerce' ); ?>" value="<?php echo get_search_query(); ?>" name="s" />
                        <button type="submit" value="<?php echo esc_attr_x( 'Search', 'submit button', 'woocommerce' ); ?>"><?php echo esc_html_x( 'Search', 'submit button', 'woocommerce' ); ?></button>
                        <input type="hidden" name="post_type" value="product" />
                </form>

the problem is that the search menu doesn't work, it just doesn't generate products:

* what can go wrong? Tried different plugins, nothing works :(