Fatal error related to breadcrumbs

Hello,

I’m sorry to hear that you are facing a fatal error related to breadcrumbs on your website in a multisite network. To troubleshoot this issue, we recommend following these steps:

1. Install Health Check and Troubleshooting Plugin:

   • To troubleshoot your website, install the Health Check and Troubleshooting plugin from the WordPress repository. You can refer to the detailed steps and screenshot provided in our KB article.

2. Enable Troubleshooting Mode:

   • Once you have installed the plugin, navigate to Tools → Site Health → Troubleshooting inside your WordPress admin area and click on Enable Troubleshooting Mode. This will deactivate all plugins and switch to the default theme.

3. Enable Rank Math:

   • In the troubleshooting mode, enable Rank Math and Rank Math PRO as shown in the screenshot.

4. Check Theme File for Breadcrumbs Function:

   • If breadcrumbs are not appearing, you may need to add the breadcrumbs function to your theme’s template file. Navigate to WordPress Dashboard → Appearance → Theme File Editor → header.php (in case of Classic Theme) and add the provided code snippet. You can find detailed instructions and a screenshot in our KB article.

5. Check for Conflict with Theme:

   • If the issue persists, switch to your current theme and ensure that the breadcrumbs function is added to your theme file. Validate the Schema Markup code to identify any conflicts with your theme. If needed, reach out to your theme’s support for further assistance.

If after following these steps, you are still experiencing the fatal error related to breadcrumbs, please provide us with more details by replying to this ticket. Our support expert will investigate further to help resolve the issue.

Thank you for bringing this concern to our attention. We appreciate your patience as we work to assist you with this matter.

Warm regards.

Sources:
How to Fix “Invalid object type for field ‘item'” » Rank Math
How to Fix “Invalid object type for field ‘item'” » Rank Math
Multilingual SEO with Rank Math SEO & WPML » Rank Math
How to Fix “Either ‘name’ or ‘item.name’ should be specified” Error » Rank Math
How to Find Out Where 404 Errors Are Coming From » Rank Math