PHP Fatal Error Breadcrumbs Enfold 4.8.8

Hi Guys,

I am working with a customer who is using the following code in functions.php to modify breadcrumb output:

//advanced title + breadcrumb function
if (!function_exists('avia_title')) {
	function avia_title($args = false, $id = false)
	{
		global $avia_config;

		if (!$id) $id = avia_get_the_id();

		$header_settings = avia_header_setting();
		if ($header_settings['header_title_bar'] == 'hidden_title_bar') return "";

		$defaults 	 = array(

			'title' 		=> get_the_title($id),
			'subtitle' 		=> "", //avia_post_meta($id, 'subtitle'),
			'link'			=> get_permalink($id),
			'html'			=> "<div class='{class} title_container'><div class='container'>{heading_html}</div></div>{additions}",
			'heading_html'	=> "<h1 class='main-title entry-title'>{title}</h1>",
			'class'			=> 'stretch_full container_wrap alternate_color ' . avia_is_dark_bg('alternate_color', true),
			'breadcrumb'	=> true,
			'additions'		=> "",
			'heading'		=> 'h1' //headings are set based on this article: http://yoast.com/blog-headings-structure/
		);

		if (is_tax() || is_category() || is_tag()) {
			global $wp_query;

			$term = $wp_query->get_queried_object();
			$defaults['link'] = get_term_link($term);
		} else if (is_archive()) {
			$defaults['link'] = "";
		}

		// Parse incomming $args into an array and merge it with $defaults
		$args = wp_parse_args($args, $defaults);
		$args = apply_filters('avf_title_args', $args, $id);

		//disable breadcrumb if requested
		if ($header_settings['header_title_bar'] == 'title_bar') $args['breadcrumb'] = false;

		//disable title if requested
		if ($header_settings['header_title_bar'] == 'breadcrumbs_only') $args['title'] = '';

		// OPTIONAL: Declare each item in $args as its own variable i.e. $type, $before.
		extract($args, EXTR_SKIP);

		if (empty($title)) $class .= " empty_title ";
		$markup = avia_markup_helper(array('context' => 'avia_title', 'echo' => false));
		if (!empty($link) && !empty($title)) $title = $title;
		if (!empty($subtitle)) $additions .= "<div class='title_meta meta-color'>" . wpautop($subtitle) . "</div>";
		if ($breadcrumb) $additions .= avia_breadcrumbs(array('separator' => '>', 'richsnippet' => true));

		if (!$title) $heading_html = "";
		$html = str_replace('{heading_html}', $heading_html, $html);

		$html = str_replace('{class}', $class, $html);
		$html = str_replace('{title}', $title, $html);
		$html = str_replace('{additions}', $additions, $html);
		$html = str_replace('{heading}', $heading, $html);

		if (!empty($avia_config['slide_output']) && !avia_is_dynamic_template($id) && !avia_is_overview()) {
			$avia_config['small_title'] = $title;
		} else {
			return $html;
		}
	}
}

Since updating to Enfold 4.8.8 the following line is causing a fatal error.

46 PHP Fatal error: Uncaught Error: Call to undefined function avia_breadcrumbs() in /nas/content/live/gagemathersstg/wp-content/themes/enfold-child/functions.php:85\nStac

The line that is causing the problem is extracted below.

if ($breadcrumb) $additions .= avia_breadcrumbs(array('separator' => '>', 'richsnippet' => true));

If I remove the line the site is visible but breadcrumbs are no longer visible on any of the pages.

Has avia_breadcrumbs been depreciated or changed in 4.8.8 or have there been any other changes to the breadcrumbs that we should know about to make them work again?

I have rolled back the server to 4.7.1 for now just while I raise this issue so the client can still access the site.