Почмеу не отображается PREVIEV_PICTURE в BITRIX?

<?php
require_once($_SERVER['DOCUMENT_ROOT'] . '/bitrix/modules/main/include/prolog_before.php');
require_once $_SERVER['DOCUMENT_ROOT'] . '/autoloader.php';
use BitrixError\BitrixError;
use EndingWord\EndingWord;

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

$arProducts = $req['product'];

if (empty($arProducts)) {
    $err400 = new BitrixError(400);
    $err400->out(array('msg' => 'Не указан товар.'));
}

if (empty($_SESSION['samogonovo']['cart']['items'])) {
    $_SESSION['samogonovo']['cart']['items'] = array();
}

$arDiscounts = array();
require_once $_SERVER['DOCUMENT_ROOT'] . '/cabinet/cache_discounts_sum.php';
require_once $_SERVER['DOCUMENT_ROOT'] . '/cabinet/total_sum.php';
$discountIndividual = 0;
foreach ($arDiscounts as $item) {
    if ($totalSum > $item['sum']) {
        $discountIndividual = $item['discount'];
    }
}
$_SESSION['samogonovo']['cart']['discount_individual'] = $discountIndividual;

CModule::IncludeModule('iblock');
$cElem = new CIBlockElement;
$arFilter = array(
    'IBLOCK_ID' => CFG::IB_CATALOG,
);
$arSelect = array(
    '*', 'PROPERTY_PRICE', 'PROPERTY_PRICE_OLD', 'PROPERTY_DISCOUNT'
);
foreach ($arProducts as $item) {
    // найдем товар и добавим в корзину, если есть
    $id = (int)$item['id'];
    if (!$id) {
        continue;
    }
    $arFilter['ID'] = $id;
    $arProd = $cElem->GetList(array(), $arFilter, false, false, $arSelect)->GetNext();
    if (empty($arProd)) {
        $err404 = new BitrixError(404);
        $err404->out(array('msg' => 'Товар не найден.'));
    }
    if (empty($_SESSION['samogonovo']['cart']['items'][$arProd['ID']])) {
        $discount = (int)$arProd['PROPERTY_DISCOUNT_VALUE'];
        $price = (int)$arProd['PROPERTY_PRICE_VALUE'];
        $price_old = (int)$arProd['PROPERTY_PRICE_OLD_VALUE'];
        if ($discount) {
            $price_old = $price;
            $price = round($price - $price / 100 * $discount);
        }
        $img = CFG::NOPHOTO_CATALOG;
        $imgSize = 'initial';
        $imgColor = '#ebebeb';
        if ($arElem['PREVIEW_PICTURE']) {
            $img = $cFile->GetPath($arProd['PREVIEW_PICTURE']);
            $imgSize = 'contain';
            $imgColor = 'transparent';
        }
        $_SESSION['samogonovo']['cart']['items'][$arProd['ID']] = array(
            'id' => $arProd['ID'],
            'name' => $arProd['NAME'],
            'img' => $img,
            'img_size' => $imgSize,
            'img_color' => $imgColor,
            'url' => $arProd['DETAIL_PAGE_URL'],
            'discount' => $discount,
            'price' => $price,
            'price_old' => $price_old,
            'count' => (int)$item['count'],
        );
    } else {
        $_SESSION['samogonovo']['cart']['items'][$arProd['ID']]['count'] += (int)$item['count'];
    }
}
$sum = 0;
$amountProducts = 0;
foreach ($_SESSION['samogonovo']['cart']['items'] as $item) {
    $sum += $item['price'] * $item['count'];
    $amountProducts += $item['count'];
}

$ew = new EndingWord($amountProducts, array('товаров', 'товар', 'товара'));
$_SESSION['samogonovo']['cart']['amount_products'] = $amountProducts;
$_SESSION['samogonovo']['cart']['text'] = $amountProducts . ' ' . $ew->get() . ' на сумму ';
$_SESSION['samogonovo']['cart']['text'] .= number_format($sum, 0, '', ' ') . ' р.';

$result = array(
    'amount_products' => $amountProducts,
    'sum' => $sum,
    'text_cart' => $_SESSION['samogonovo']['cart']['text'],
    'msg' => 'Товар добавлен в корзину.',
);

echo json_encode($result);
//unset($_SESSION['samogonovo']['cart']);
require_once($_SERVER['DOCUMENT_ROOT'] . '/bitrix/modules/main/include/epilog_after.php');