Schwimmen gegen den Strom

Fehlermeldung

• Notice: Undefined index: comment_node_image_form in drupal_retrieve_form() (Zeile 809 von /hosted/kjh/ftproot/www/drupal_medrum/includes/form.inc).
• Warning: call_user_func_array() expects parameter 1 to be a valid callback, function 'comment_node_image_form' not found or invalid function name in drupal_retrieve_form() (Zeile 844 von /hosted/kjh/ftproot/www/drupal_medrum/includes/form.inc).