Fehlermeldung

• Warning: Cannot modify header information - headers already sent by (output started at /home/www/21/93/hshgpado/drupal/includes/common.inc:2565) in drupal_send_headers() (Zeile 1039 von /home/www/21/93/hshgpado/drupal/includes/bootstrap.inc).
• SearchApiException: Unknown or invalid item type node. in search_api_get_datasource_controller() (Zeile 1677 von /home/www/21/93/hshgpado/drupal/modules/search_api/search_api.module).