Error message

• User warning: The following module is missing from the file system: interval. For information about how to fix this, see the documentation page. in _drupal_trigger_error_with_delayed_logging() (line 1187 of /var/www/preprodsmww/public_html/includes/bootstrap.inc).
• Notice: Trying to get property of non-object in main() (line 33 of /var/www/preprodsmww/public_html/index.php).