Hello @ocio132,
Thank you for contacting the support and sorry for any inconvenience that might have been caused due to that.
We add the URL to the Person property only when the Author Archive is enabled:
https://rankmath.com/kb/advanced-mode/#num-10-authors-titles-meta-settings
If the author archive is disabled then the URL is not needed because in that case URL will lead to a 404 page. You can ignore this warning if you don’t want to enable the Author archive.
Hope that clears the confusion and helps.
