OnOrderStatusSendEmail в D7

AddEventHandler("sale","OnSaleStatusOrderChange","send_order_data");
function send_order_data($order) {


   $sum = $order->getField('PRICE'); // Сумма заказа
   $order_id = $order->getId();


   $arFilter = [ "ID" => $order_id]; ///,"STATUS_ID"=>"NE"
   $result   = CSaleOrder::GetList(['ID' => 'DESC'], $arFilter);
   

   
   $arFields["TRACK"] = 'track num';
   while ($item = $result->GetNext()) {
      if ($item['TRACKING_NUMBER']) {
         $track = $item['TRACKING_NUMBER'];

      }
   }   

}

\Bitrix\Main\EventManager::getInstance()->addEventHandler("sale", "OnSaleStatusOrder", array("URECEND_MAIL","send_order_data"));

<?php
class URECEND_MAIL
{
    public function __construct()
    {
        if (!CModule::IncludeModule('iblock')); /// die('no iblock');
        if (!CModule::IncludeModule('sale')); // die('no iblock');
    }


 

 public  function send_order_data($event)
{ #перехват почтовых событий при изменении статуса заказа и засылка своих шаблонов писем юзерам и почтовой рассылки

    $order = \Bitrix\Sale\Order::load($event);
    if ($order->getField('STATUS_ID') == "DP") {
        /// заказ отправлен
        $shipmentCollection = $order->getShipmentCollection();

        foreach ($shipmentCollection as $shipment) {
            if ($shipment->isSystem()) {
                continue;
            }

            $trackingNumber = $shipment->getField('TRACKING_NUMBER');
        }

        $id = $order->getField("USER_ID");     
        $user = new CUser;
        $user_ = $user->GetByID($id);
        $email = $user->GetEmail();


        $order_id             = $order->getId();
        $arFields["TRACK"]    = $trackingNumber;
        $arFields['ORDER_ID'] = $order_id;
        $arFields['EMAIL']     = $email;
        CEvent::Send("ORDER_SENT", $order->getSiteId(), $arFields);
        ///AddMessage2Log("print_r($trackingNumber)");
    } else if ($order->getField('STATUS_ID') == "PB") {
        /// нет платежа
        $id = $order->getField("USER_ID");     
        $user = new CUser;
        $user_ = $user->GetByID($id);
        $email = $user->GetEmail();

        $order_id              = $order->getId();
        $arFields["ORDER_SUM"] = $order->getPrice();
        $arFields['ORDER_ID']  = $order_id;
        $arFields['EMAIL']     = $email;

        CEvent::Send("NO_CASH", $order->getSiteId(), $arFields);

    }

} 

}