single-post_type.php page not loading on Live Site

Hi there,

I have a custom post_type called “Portfolio”

Here’s my code in functions.php

function post_type_portfolio() {
	register_post_type(
    'portfolio',
    array('label' => __('Portfolio'),
             'public' => true,
             'show_ui' => true,
             'capability_type' => 'post',
             'hierarchical' =>  true,
             'rewrite' => true,
             'query_var' =>  true,
             'supports' => array(
             			'title',
             			'editor',
                        'post-thumbnails',
                        'excerpts',
                        'custom-fields',
                        'revisions')
                )
    );

    register_taxonomy( 'Skills', 'portfolio',
		array(
             'hierarchical' => false,
			 'label' => __('Skills'),
			 'query_var' => 'skills',
			 'rewrite' => array('slug' => 'skills' )
		)
	);

	register_taxonomy( 'Media', 'portfolio',
		array(
             'hierarchical' => false,
			 'label' => __('Media'),
			 'query_var' => 'media',
			 'rewrite' => array('slug' => 'media' )
		)
	);

};

add_action('init', 'post_type_portfolio');

I have added a couple of Portfolio items.

Here is the live demo: https://azadcreative.com/portfolio/

There are 2 template files: portfolio.php and single-portfolio.php

This works on my test server (localhost) but in the live site, the item pages are broken..

Any ideas? Thanks in advance.

Mind you, everything works in localhost.

Screenshot of localhost (notice the address bar):
https://azadcreative.com/files/localhost-screenshot.png