Notice: Use of undefined constant DRUPAL_ROOT - assumed 'DRUPAL_ROOT' in /var/www/primolo.de/stable/includes/bootstrap.inc on line 2590

Warning: require_once(DRUPAL_ROOT/includes/errors.inc): failed to open stream: No such file or directory in /var/www/primolo.de/stable/includes/bootstrap.inc on line 2590

Fatal error: require_once(): Failed opening required 'DRUPAL_ROOT/includes/errors.inc' (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/primolo.de/stable/includes/bootstrap.inc on line 2590