Breadcrumbs – hierarchical categories and subcategories

Hello,

We’re sorry to hear about the issue you’re facing with the breadcrumbs on your website. It seems like you’ve already checked and ensured that all the settings are correct, and you’ve also tried enabling and disabling the breadcrumbs options in the administration.

The error message you’ve shared from the server log seems to be related to a PHP warning in the Rank Math plugin. This could potentially be causing the issue with the breadcrumbs not displaying correctly.

Since this seems to be a technical issue that might require deeper investigation, I’d recommend assigning this ticket to our support team by clicking on the “Assign to Human Agent” button below. Our support experts will look into this matter and provide you with a solution as soon as possible.

Thank you for bringing this to our attention, and we appreciate your patience as we work to resolve this issue for you.

Sources:
How to Enable Breadcrumbs on Your Website With Rank Math SEO » Rank Math
Rank Math General Settings
How to Fix “Invalid object type for field ‘item'” » Rank Math

Hello,

Could you please share the expected breadcrumbs on that URL? Please also share the URLs of each to check the hierarchical structure.

Also, we might need to take a closer look at the settings. Please edit the first post on this ticket and include your WordPress & FTP logins in the designated Sensitive Data section.

Please do take a complete backup of your website before sharing the information with us.

It is completely secure and only our support staff has access to that section. If you want, you can use the below plugin to generate a temporary login URL to your website and share that with us instead:

https://wordpress.org/plugins/temporary-login-without-password/

You can use the above plugin in conjunction with the WP Security Audit Log to monitor what changes our staff might make on your website (if any):

https://wordpress.org/plugins/wp-security-audit-log/

We really look forward to helping you.

Hello,

You can use the following filter to adjust the Rank Math breadcrumbs to your desired output:

add_filter( 'rank_math/frontend/breadcrumb/items', function( $crumbs, $class ) {
	$post_type = get_post_type(get_queried_object());
	
	if ($post_type == 'your_post_type') {
		$crumbs[1][0] = 'Plantas';
		$crumbs[1][1] = 'https://plantandovida.com/plantas/';
	}

	return $crumbs;
}, 10, 2);

Change your_post_type with the actual post type of your website.

Here is a guide you can follow to add this filter:
https://rankmath.com/kb/wordpress-hooks-actions-filters/

Let us know how it goes.

Thank you.

Hello,

We are super happy that this resolved your issue. If you have any other questions in the future, know that we are here to help you.

If you don’t mind me asking, could you please leave us a review (if you haven’t already) on https://wordpress.org/support/plugin/seo-by-rank-math/reviews/#new-post about your overall experience with Rank Math? We appreciate your time and patience.

If you do have another question in the future, please feel free to create a new forum topic, and it will be our pleasure to assist you again.

Thank you.