why no success???

After installed this plugin and add below code under header.php file, still not achieve the function. Pls help to check: http://www.selfiesticksales.com

code as below:
< ?php if(function_exists(‘bcn_display’))
{
bcn_display();
}?>

thanks.

https://ww.wp.xz.cn/plugins/breadcrumb-navxt/