Error deploying symfony system: Uncaught LogicException: Extension DOM is required

I developed a system with symfony 5 and now I have deployed to hosting. Migrate the files by fpt and everything is perfect. However, when I run the system I get the following error:

 Uncaught LogicException: Extension DOM is required. 

The system in the hosting is in php 7.4 On the other hand, my index file is configured as:

<?php

  use App\Kernel;
  use Symfony\Component\ErrorHandler\Debug;
  use Symfony\Component\HttpFoundation\Request;

 require '/home12/eisenluk/symfony/config/bootstrap.php'; 
 require '/home12/eisenluk/symfony/vendor/autoload.php';

if ($_SERVER['APP_DEBUG']) {
   umask(0000);

   Debug::enable();
 }

if ($trustedProxies = $_SERVER['TRUSTED_PROXIES'] ?? $_ENV['TRUSTED_PROXIES'] ?? false) {
  Request::setTrustedProxies(explode(',', $trustedProxies), Request::HEADER_X_FORWARDED_ALL ^      Request::HEADER_X_FORWARDED_HOST);
 }

if ($trustedHosts = $_SERVER['TRUSTED_HOSTS'] ?? $_ENV['TRUSTED_HOSTS'] ?? false) {
   Request::setTrustedHosts([$trustedHosts]);
}
$kernel = new Kernel($_SERVER['APP_ENV'], (bool) $_SERVER['APP_DEBUG']);
$request = Request::createFromGlobals();
$response = $kernel->handle($request);
$response->send();
$kernel->terminate($request, $response);

On the other hand my .htaccess file set my env:

SetEnv APP_ENV prod
SetEnv DATABASE_URL 'mysql://eisenluk_user:Hm2DsQL9h@[email protected]:3306/eisenluk_sql'

If you can guide me on how to configure it, thank you!