Page not found on custom taxonomy page

Hi,
I have setup a custom post type that has two custom taxonomies associated with it. The code below is in the themes function file. The custom post type is for a series of products (mha-products) which will be categorised by type (product_type) and application (applications).

Under products i will display a list of categories before drilling down into the list of products. Applications will display a list of all applications then link to a page about the individual application.

Within my theme i have the following template files:

• archive-mha-products.php
• taxonomy-applications.php
• taxonomy-product_type.php
• single-mha-products.php

I am currently getting a “page not found” for /applications but everything is working correctly for /products.

Heres the products section and heres the applications section

Any help appreciated.

Functions code:

//
// Custom Post Types
// ================================================== -->
//
	function create_my_post_types() {
  	//Post type name
		register_post_type( 'mha-products',
			array(
				'labels' => array(
					'name' => _x('Products', 'post type general name'),
					'singular_name' => _x('Product', 'post type singular name'),
					'add_new' => _x('Add Product', 'product'),
					'add_new_item' => __('Add New'),
					'edit_item' => __('Edit Product'),
					'new_item' => __('New Product'),
					'all_items' => __('All Products'),
					'view_item' => __('View Product'),
					'search_items' => __('Search Products'),
					'not_found' =>  __('Nothing found'),
					'not_found_in_trash' => __('Nothing found in Trash'),
					'parent_item_colon' => '',
					'menu_name' => __('Products')
				),
				'public' => true,
				'publicly_queryable' => true,
				'query_var' => true,
				'menu_icon' => 'dashicons-lightbulb', // Get icons from here WordPress 3.8 only - https://melchoyce.github.io/dashicons/

				'supports' => array( 'title', 'editor', 'excerpt', 'thumbnail' ),
				'rewrite' => array( 'slug' => 'products', 'with_front' => 'false' ), //Slug must be diffferent to page name
				'menu_position' => 5,
				'has_archive' => true
			)
		);
	}

//
// Custom Taxonomies
// ================================================== -->
//
	function build_taxonomies() {
	    // Add new Product type taxonomy, make it hierarchical (like categories)
	    $productlabels = array(
		    'name' => _x( 'Product Type', 'taxonomy general name' ),
		    'singular_name' => _x( 'Product Type', 'taxonomy singular name' ),
		    'search_items' =>  __( 'Search Product Types' ),
		    'all_items' => __( 'All Product Types' ),
		    'edit_item' => __( 'Edit Product Type' ),
		    'update_item' => __( 'Update Product Type' ),
		    'add_new_item' => __( 'Add New Product Type' ),
		    'new_item_name' => __( 'New Product Type Name' ),
		    'menu_name' => __( 'Product Type' ),
	    ); 

	    register_taxonomy('product_type',
	    	array('mha-products'),
	    		array(
				    'hierarchical' => true,
				    'labels' => $productlabels,
				    'show_ui' => true,
				    'show_admin_column' => true,
				    'query_var' => true,
				    'has_archive' => true,
				    'rewrite' => array( 'slug' => 'products/type', 'with_front' => false),
				   	'show_in_nav_menus' => true,
			    )
		);

		// Add new Application taxonomy, make it hierarchical (like categories)
	    $applicationlabels = array(
		    'name' => _x( 'Applications', 'taxonomy general name' ),
		    'singular_name' => _x( 'Application', 'taxonomy singular name' ),
		    'search_items' =>  __( 'Search Applications' ),
		    'all_items' => __( 'All Applications' ),
		    'edit_item' => __( 'Edit Application' ),
		    'update_item' => __( 'Update Application' ),
		    'add_new_item' => __( 'Add New Application' ),
		    'new_item_name' => __( 'New Application Name' ),
		    'menu_name' => __( 'Applications' ),
	    ); 

	    register_taxonomy('applications',
	    	array('mha-products'),
	    		array(
				    'hierarchical' => true,
				    'labels' => $applicationlabels,
				    'show_ui' => true,
				    'show_admin_column' => true,
				    'query_var' => true,
				    'has_archive' => true,
				    'rewrite' => array( 'slug' => 'applications', 'with_front' => false),
				   	'show_in_nav_menus' => true,
			    )
		);
	}