Fatal error: require_once(): Failed opening required '/var/www/html/vendor/friendsofsymfony/oauth2-php/server/examples/pdo/lib/../../../../vendor/Symfony/Component/ClassLoader/UniversalClassLoader.php' (include_path='.:/usr/share/php') in /var/www/html/vendor/friendsofsymfony/oauth2-php/server/examples/pdo/lib/bootstrap.php on line 7