Messaggio di errore

User warning: The following module is missing from the file system: rules. For information about how to fix this, see the documentation page. in _drupal_trigger_error_with_delayed_logging() (line 1159 of /web/htdocs/www.dottormontanari.it/home/includes/bootstrap.inc).
User warning: The following module is missing from the file system: rules_admin. For information about how to fix this, see the documentation page. in _drupal_trigger_error_with_delayed_logging() (line 1159 of /web/htdocs/www.dottormontanari.it/home/includes/bootstrap.inc).