Breadcrumbs – LearnDash

Hi,
We’re using an Uncanny Owl plugin to try to override the breadcrumbs in Enfold so that they reflect the way LearnDash is set up.
We placed the code below in our Enfold child theme functions.php file, but it doesn’t seem to be working. You recommend modifying the header.php but we were unable to find the code to do that. LearnDash have suggested it may not work because of a mayor recent update they released. Can you possibly help?

function x_breadcrumbs() {
if ( x_get_option( ‘x_breadcrumb_display’ ) ) {
echo do_shortcode(‘[uo_breadcrumbs]’);
}
}