Error message

• Notice: Undefined index: localized_options in menu_navigation_links() (line 1858 of /home/www/drupal-7.0/includes/menu.inc).
• Notice: Undefined index: localized_options in i18n_menu_navigation_links() (line 434 of /home/www/drupal-7.0/sites/all/modules/i18n/i18n_menu/i18n_menu.module).