Hello,
Thanks for getting in touch with us.
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​This is related to the changes by Google: ​https://www.seroundtable.com/google-sunset-data-vocabulary-28868.html
It is likely caused by the Breadcrumbs you are using – either using your theme or using another plugin. Rank Math’s breadcrumbs are not having this issue.
Please replace your theme’s breadcrumbs with the ones Rank Math offers. You can add the PHP code in your theme files manually for that:
​WordPress Dashboard > Rank Math > General Settings > Breadcrumbs.
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​If you aren’t certain where you need to place the breadcrumbs, please ask your theme provider. They will be able to tell you which files and what code to replace.
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​Hope that helps and please do not hesitate to let us know if you need our assistance with anything else
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.