Fatal error: Uncaught Error: Undefined class constant 'self::MAIN_REQUEST' in /home/fighti19/public_html/web/core/lib/Drupal/Core/DrupalKernel.php:695 Stack trace: #0 /home/fighti19/public_html/backup/index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request)) #1 {main} thrown in /home/fighti19/public_html/web/core/lib/Drupal/Core/DrupalKernel.php on line 695