Notice: Use of undefined constant AMP - assumed 'AMP' in /var/www/sv_111/web.tailieuluat.com/app/modules/web/controllers/BaseController.php on line 33

Fatal error: Uncaught Error: Class 'DOMDocument' not found in /var/www/sv_111/web.tailieuluat.com/app/modules/web/controllers/SitemapController.php:126 Stack trace: #0 [internal function]: SitemapController->sitemapAction() #1 [internal function]: Phalcon\Dispatcher->callActionMethod(Object(SitemapController), 'sitemapAction', Array) #2 [internal function]: Phalcon\Dispatcher->dispatch() #3 /var/www/sv_111/web.tailieuluat.com/public/index.php(189): Phalcon\Mvc\Application->handle() #4 {main} thrown in /var/www/sv_111/web.tailieuluat.com/app/modules/web/controllers/SitemapController.php on line 126