Installing a custom payment method for the cloud version of Bitrix. What did you do wrong?

Question

Bitrix24

I wrote a custom payment method and compiled it into an installer.

on the boxed version, the installation is successful and the new payment method is displayed.
In the cloud version, I get


the installer code (index.php)

<?php
/**
 * Odrazu Payment Module
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is available through the world-wide-web at this URL:
 * http://opensource.org/licenses/osl-3.0.php
 *
 * @category        Odrazu
 * @package         eshop.odrazu
 * @version         1.0.0
 * @author          Odrazu
 * @copyright       Copyright (c) 2021 Odrazu
 * @license         http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
 *
 * EXTENSION INFORMATION
 *
 * 1C-Bitrix        20.0
 * Odrazu API       https://2m2.ua
 *
 */

use Bitrix\Main\Localization\Loc;
use Bitrix\Main\ModuleManager;

Loc::loadMessages(__FILE__);
class odrazu extends CModule
{

    const MODULE_ID = 'odrazu';
    const PARTNER_NAME = 'eshop';
    const PARTNER_URI = 'https://2m2.ua';

    var $MODULE_ID = 'odrazu';
    var $PARTNER_NAME = 'eshop';
    var $PARTNER_URI = 'https://2m2.ua';

    public $MODULE_GROUP_RIGHTS = 'N';

    public function __construct()
    {
        $arModuleVersion = [];
        include(__DIR__.'/version.php');
        $this->MODULE_ID = 'odrazu';
        $this->MODULE_NAME = Loc::getMessage('ODRAZU_MODULE_NAME');
        $this->MODULE_DESCRIPTION = Loc::getMessage('ODRAZU_MODULE_DESC');
        $this->MODULE_VERSION = $arModuleVersion['VERSION'];
        $this->MODULE_VERSION_DATE = $arModuleVersion['VERSION_DATE'];
        $this->PARTNER_NAME = 'eshop';
        $this->PARTNER_URI = 'https://2m2.ua';
    }

    public function DoInstall()
    {
        global $APPLICATION;
        $this->InstallFiles();
        ModuleManager::registerModule($this->MODULE_ID);
    }

    public function DoUninstall()
    {
        ModuleManager::unRegisterModule($this->MODULE_ID);
        $this->UnInstallFiles();
    }

    public function InstallFiles()
    {
        CopyDirFiles(
            __DIR__.'/sale_payment',
            $_SERVER['DOCUMENT_ROOT'].'/bitrix/php_interface/include/sale_payment',
            true, true
        );
    }

    public function UnInstallFiles()
    {
        DeleteDirFilesEx($_SERVER['DOCUMENT_ROOT']."/bitrix/php_interface/include/sale_payment/".$this->MODULE_ID);
        return true;
    }
}