This is an Enfold shortcode to display breadcrumbs anywhere in your WordPress Enfold theme. To use the function use the following shortcode:

[av_breadcrumbs]

or hardcode it in your theme using the following php script:

<?php echo do_shortcode("[shortcode]"); ?>

function av_breadcrumbs_shortcode( $atts ) {
return avia_breadcrumbs(array('separator' => '/', 'richsnippet' => true));
}
add_shortcode( 'av_breadcrumbs', 'av_breadcrumbs_shortcode' );

Source: https://kriesi.at/documentation/enfold/breadcrumbs/