Ultra Child Theme Not Working

Greetings.

I have a problem with Ultra Child Theme. I want create a child theme based on Ultra, so I use the Ultra Child Theme – Starter from here.

I named the child theme with akunikah (wp-content/themes/akunikah) and edit the style.css to the following:

/*
Theme Name: AkuNikah
Author: Firman Dwi Jayanto
Author URI: http://facebook.com/firmandije
Theme URI: http://ilmututorial.com
Description: Tema AkuNikah.com Undangan Pernikahan Online.
Version: 1.0.0
Template: ultra
Text Domain: akunikah
Domain Path: /languages/
*/

/* =Theme customization starts here
-------------------------------------------------------------- */

But, it seem the child theme not working, the parent style seem not load correctly. My site can be accessed here. What I am doing wrong? How to fix this problem?