Lusayo Nyondo

Hi, I just downloaded phpservermon-3.2.0. Whenever I try to run 'install.php', it just turns up blank. Following the the documentation, I added the line 'define('PSM_DEBUG', true);' to the config.php file, and it gave me the following error: Fatal error: Uncaught Error: Class 'DOMDocument' not found in /var/www/html/phpservermon-3.2.0/vendor/symfony/config/Util/XmlUtils.php:52 Stack trace: #0 /var/www/html/phpservermon-3.2.0/vendor/symfony/dependency-injection/Loader/XmlFileLoader.php(280): Symfony\Component\Config\Util\XmlUtils::loadFile('/var/www/html/p...',...