PHP Errore [Warning]

Fatal error: require_once(): Failed opening required '/home/fanikatu/public_html/components/com_reservations/includes/reservations.fhelper.php' (include_path='.:/opt/cpanel/ea-php56/root/usr/share/pear') in /home/fanikatu/public_html/components/com_reservations/reservations.php on line 18