Problema con l'aggiunta al carrello Ajax in WooCommerce

In woocommerce ajax add to cart method not adding when cart is empty, if cart contains something then my ajax function adds but if cart is empty it doesn't add. And no error.

Here is the link. PHP add cart function:

function add_custom_product_meta() {
    global $woocommerce, $wpdb;

    $item_id = isset($_POST['item_id']) ? apply_filters( 'woocommerce_add_to_cart_product_id', absint( $_POST['item_id'] ) ) : FALSE;
    $quantity = empty( $_POST['quantity'] ) ? 1 : wc_stock_amount( $_POST['quantity'] );
    $passed_validation = apply_filters( 'woocommerce_add_to_cart_validation', true, $item_id, $quantity );
    $product_status    = get_post_status( $item_id );

    $variation_id = isset($_POST['variation_id']) ? $_POST['variation_id'] : 0;
    $atributes = isset($_POST['atributes']) ? $_POST['atributes'] : 'Small';
    $attribute_pa_macaroons = isset($_POST['attribute_pa_macaroons']) ? $_POST['attribute_pa_macaroons'] : FALSE;

    if($attribute_pa_macaroons && $passed_validation && $woocommerce->cart->add_to_cart( $item_id, $quantity, $variation_id, array( 'attribute_size' => $atributes,  "macaroons" => $attribute_pa_macaroons))){

        //$added = $woocommerce->cart->add_to_cart( $item_id, $quantity, $variation_id, array( 'attribute_size' => $atributes,  "macaroons" => $attribute_pa_macaroons));

        do_action( 'woocommerce_ajax_added_to_cart', $item_id );

        if ( get_option( 'woocommerce_cart_redirect_after_add' ) == 'yes' ) {
            wc_add_to_cart_message( $item_id );
        }

        WC_AJAX::get_refreshed_fragments();

        echo json_encode(array(
            'atributes' => $atributes,
            'macaroons' => $attribute_pa_macaroons,
            'product_added' => TRUE,
            'ajax_complete' => TRUE,
            'posted' => isset($_POST['item_id']) ? $woocommerce->cart : 'item_id is empty'
        ));
        wp_die();
    }

    echo json_encode(array(
        'product_id' => FALSE,
        'product_added' => FALSE,
        'ajax_complete' => TRUE,
        'posted' => $attribute_pa_macaroons
    ));
    wp_die();
}

Javascript Ajax call:

$.ajax({
                        type : 'post',
                        dataType : 'json',
                        url : woocommerce_params.ajax_url,
                        data : {
                            'action' : 'elephas_addtocart_box',
                            'item_id' : itemID,
                            'quantity' : quantity,
                            'variation_id' : variathionID,
                            'atributes' : atributes,
                            'attribute_pa_macaroons' : itemData
                        }
                    })
                    .done(function(response){
                        if(response.ajax_complete){
                            document.location.reload(true);
                        }
                    })
                    .error(function(error){
                        console.log(error);
                    })
                    .always(function(response){
                        if(response.ajax_complete){
                            document.location.reload(true);
                        }
                    });