Plugins not showing up for custom template

Always Put wp_head() in header and wp_footer() in footer. the plugin uses this hook

Header.php:

 <?php 
     ...
        /* Always have wp_head() just before the closing </head>
         * tag of your theme, or you will break many plugins, which
         * generally use this hook to add elements to <head> such
         * as styles, scripts, and meta tags.
         */
        wp_head();
     ?>
     </head>

Footer.php:

<?php
   /* Always have wp_footer() just before the closing </body>
    * tag of your theme, or you will break many plugins, which
    * generally use this hook to reference JavaScript files.
    */
    wp_footer();
?>
</body>
</html>