Cannot get Menu Breadcrumb Working

Hi,
I’m having problems getting this plugin working. I have a main menu assigned Top_Nav and the location is ‘Primary Menu’. I pasted the relevant code (see below) into my page.php file but the pages don’t show the breadcrumbs.

<?php if ( function_exists( ‘menu_breadcrumb’) ) { menu_breadcrumb( ‘Primary Menu’ ); } ?>

I think it maybe the location thats wrong but I cant find any other reference to the menu location. On the Menu setup screen the only reference to location is ‘Primary Menu’??

I’m not sure what Im doing wrong, I’m not an expert with WordPress code so may be doing something completely wrong. Please can you help, thanks.

Kind regards, John

https://www.ads-software.com/plugins/menu-breadcrumb/