Доработка сайта Matsesta.shop на платформе 1С-Битрикс

<script src="./scripts/custom-translate.js"></script>
<link rel="stylesheet" href="./styles/custom-translate.css">

 <?php
     if (!defined("B_PROLOG_INCLUDED") || B_PROLOG_INCLUDED !== true) die();

     $shopId = 'YOUR_SHOP_ID';
     $secretKey = 'YOUR_SECRET_KEY';

     $data = file_get_contents('php://input');
     $json = json_decode($data, true);

     if ($json && isset($json['object']['id'])) {
         $paymentId = $json['object']['id'];
         $status = $json['object']['status'];

         // Проверка подписи
         $signature = hash_hmac('sha256', $paymentId, $secretKey);
         if ($signature === $_SERVER['HTTP_X_YANDEX_CHECKOUT_SIGNATURE']) {
             if ($status === 'succeeded') {
                 // Обновление статуса заказа
                 $order = \Bitrix\Sale\Order::load($paymentId);
                 if ($order) {
                     $order->setField('STATUS_ID', 'N'); // Например, "Оплачен"
                     $order->save()
                 }
             }
         }
     }

 <? foreach ($arResult["ITEMS"] as $arItem): ?>
       <div class="event-item">
           <h2><?= $arItem["NAME"] ?></h2>
           <p>Дата: <?= $arItem["DISPLAY_ACTIVE_FROM"] ?></p>
           <p>Место: <?= $arItem["PROPERTIES"]["LOCATION"]["VALUE"] ?></p>
           <img src="<?= CFile::GetPath($arItem["PROPERTIES"]["PHOTO"]["VALUE"]) ?>" alt="<?= $arItem["NAME"] ?>">
           <a href="<?= $arItem["DETAIL_PAGE_URL"] ?>">Подробнее</a>
       </div>
   <? endforeach; ?>

 <h1><?= $arResult["NAME"] ?></h1>
   <p>Дата: <?= $arResult["DISPLAY_ACTIVE_FROM"] ?></p>
   <p>Место: <?= $arResult["PROPERTIES"]["LOCATION"]["VALUE"] ?></p>
   <img src="<?= CFile::GetPath($arResult["PROPERTIES"]["PHOTO"]["VALUE"]) ?>" alt="<?= $arResult["NAME"] ?>">
   <div><?= $arResult["DETAIL_TEXT"] ?></div>