Display cross sells inside WooCommerce single products custom tab

Check the below code.

//Add custom tabs filter
add_filter('woocommerce_product_tabs', 'add_new_default_product_tab' );
function add_new_default_product_tab( $tabs ) {

    global $product;

    // set the new priority to the "reviews" tab
    $tabs['reviews']['priority'] = 20;

    // gets the value to use as the title and slug of the new tab
    $custom_tab_title = "אביזרים";
    $custom_tab_title2 = "אביזרים משלימים";

    // if the custom field is set, it adds the new tab
    if ( ! empty($custom_tab_title) ) {
        $tabs['awp-' . sanitize_title('props')] = array(
            'title' => 'אביזרים',
            'callback' => 'awp_custom_woocommerce_tabs',
            'priority' => 5
        );
    }
    if ( ! empty($custom_tab_title) ) {
        $tabs['awp-' . sanitize_title('additional-props')] = array(
            'title' => 'אביזרים משלימים',
            'callback' => 'awp_custom_woocommerce_tabs2',
            'priority' => 10
        );
    }
    return $tabs;
}

//Callback to display upsells (WORKS)

function awp_custom_woocommerce_tabs($key, $tab) {
    ?>
    <div class="related">
    <?php
    // Customised: Show cross-sells on single product pages, under the attributes and short description
    global $post;
    $crosssells = get_post_meta( $post->ID, '_upsell_ids',true);
    if($crosssells) { 
        echo '<h2>Up Sell products</h2>';
        echo '<ul>';
        foreach ($crosssells as $item) {
            // WP_Query arguments
            $args = array (
                'p'           => $item,
                'post_type'   => array( 'product' ),
                'post_status' => array( 'publish' ),
            );
            // The Query
            $crosssells_products = new WP_Query( $args );
            // The Loop
            if ( $crosssells_products->have_posts() ) {
                while ( $crosssells_products->have_posts() ) {
                    $crosssells_products->the_post();
                    ?>
                        <li><a href="<?php the_permalink();?>"><?php the_title();?></a></li>
                    <?php
                }
            } else {
                // no posts found
            }
            // Restore original Post Data
            wp_reset_postdata();
        }
        echo '</ul>';
    }
    ?>
    </div>
    <?php
}


//Callback to display cross sells (Doesn't work)

function awp_custom_woocommerce_tabs2($key, $tab) {
    ?>
    <div class="related">
    <?php
    // Customised: Show cross-sells on single product pages, under the attributes and short description
    global $post;
    $upsell = get_post_meta( $post->ID, '_crosssell_ids',true);
    if($upsell) { 
        echo '<h2>Cross Sell products</h2>';
        echo '<ul>';
        foreach ($upsell as $item) {
            // WP_Query arguments
            $args = array(
                'p'           => $item,
                'post_type'   => array( 'product' ),
                'post_status' => array( 'publish' ),
            );
            // The Query
            $upsell_products = new WP_Query( $args );
            // The Loop
            if ( $upsell_products->have_posts() ) {
                while ( $upsell_products->have_posts() ) {
                    $upsell_products->the_post();
                    ?>
                        <li><a href="<?php the_permalink();?>"><?php the_title();?></a></li>
                    <?php
                }
            } else {
                // no posts found
            }
            // Restore original Post Data
            wp_reset_postdata();
        }
        echo '</ul>';
    }
    ?>
    </div>
    <?php
}