Fatal error: Uncaught Error: Class 'DOMDocument' not found in /home/whmilkir/public_html/psm/vendor/symfony/config/Util/XmlUtils.php:52 Stack trace: #0 /home/whmilkir/public_html/psm/vendor/symfony/dependency-injection/Loader/XmlFileLoader.php(280): Symfony\Component\Config\Util\XmlUtils::loadFile('/home/whmilkir/...', Array) #1 /home/whmilkir/public_html/psm/vendor/symfony/dependency-injection/Loader/XmlFileLoader.php(41): Symfony\Component\DependencyInjection\Loader\XmlFileLoader->parseFileToDOM('/home/whmilkir/...') #2 /home/whmilkir/public_html/psm/src/psm/Router.php(201): Symfony\Component\DependencyInjection\Loader\XmlFileLoader->load('services.xml') #3 /home/whmilkir/public_html/psm/src/psm/Router.php(54): psm\Router->buildServiceContainer() #4 /home/whmilkir/public_html/psm/src/bootstrap.php(66): psm\Router->__construct() #5 /home/whmilkir/public_html/psm/index.php(28): require('/home/whmilkir/...') #6 {main} thrown in /home/whmilkir/public_html/psm/vendor/symfony/config/Util/XmlUtils.php on line 52