Js files don't work

Hi, I have changed the menu of this theme to another one but Js files don’t work I don’t know why?
in functions.php:

function sam_menu_scr(){
    wp_enqueue_script('classie', get_template_directory_uri() . '/js/classie.js');
    wp_enqueue_script('main', get_template_directory_uri() . '/js/main.js');

}
add_action('wp_enqueue_scripts','sam_menu_scr');

is some thing wrong?
here’s the link to my site: http://demo09.test03.vixohub.com/