Polylang does not translate custom pot type labels on frontend

I have a problem. Polylang does not translate custom post type labels.
I register a new post type in my theme function.php and translate the labels using the function pll__.

add_action( 'init', 'register_post_type' );
$labels = array(
	'name' => pll__( 'Territories' ), 'singular_name' => pll__( 'Territory' ),
	'add_new' => pll__( 'Add New' ),
	'add_new_item' => pll__( 'Add New Territory' ),
	'edit_item' => pll__( 'Edit Territory' ),
	'new_item' => pll__( 'New Territory' ),
	'view_item' => pll__( 'View Territory' ),
	'search_items' => pll__( 'Search Territories' ),
	'not_found' => pll__( 'No Territories yet' ),
	'not_found_in_trash' => pll__( 'No Territories in trash' ),
	'parent_item_colon' => '',
	'menu_name' => pll__( 'Territories' ),
);
			
register_post_type( 'wm_territory', array(
	'labels' => $labels, 
	'description' => pll__( 'Territories for creating territories page' ),
	'public' => true, 
	'publicly_queryable' => true,
	'show_ui' => true,
	'query_var' => true,
	'rewrite' => array(
		'slug' => 'territories',
	), 
	'capability_type' => array( 'territory', 'territories' ),
	'map_meta_cap' => true,
	'has_archive' => true, 
	'hierarchical' => false, 
	'menu_position' => 25,
	'menu_icon' => 'dashicons-location-alt',
	'supports' => array( 'title', 'editor', 'author', 'thumbnail' ),
) );

On page /wp-admin/edit.php?post_type=wm_territory Polylang translates correctly. There is used $post_type_object = get_post_type_object( $post_type ); code. When I use the same code in my archive-wm_territory.php, Polylang does not translate labels.

What should I do to make Polylang translate it?