Error message

• User warning: The following module is missing from the file system: menu_block. For information about how to fix this, see the documentation page. in _drupal_trigger_error_with_delayed_logging() (line 1156 of /home/manowdeg/domains/manowdesign.com/public_html/homestay/includes/bootstrap.inc).
• User warning: The following module is missing from the file system: menu_block_export. For information about how to fix this, see the documentation page. in _drupal_trigger_error_with_delayed_logging() (line 1156 of /home/manowdeg/domains/manowdesign.com/public_html/homestay/includes/bootstrap.inc).