Adding RankMath Breadcrumb code in the Divi Theme

Hello,

I’m trying to add enable breadcrumbs on my website by implementing the following: <?php if (function_exists(‘rank_math_the_breadcrumbs’)) rank_math_the_breadcrumbs(); ?>.

I have tried to add this code to the Divi child theme function files but it breaks the site. Would you be able to tell me in which file of the Divi theme I should add the code?

Thanks