Hello,
Thank you for contacting the support, and sorry for any inconvenience that might have been caused due to that.
It seems this points to your author in your Review snippets.
We might need to take a closer look at the settings. Please edit the first post on this ticket and include your WordPress login 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,
I have updated the sensitive data as requested. Can you please check further?
Thank you.
Hello,
That property on the pages comes from the automatic Person Schema that our plugin applies to every page but all the pages on your website are not associated with any user or at least with any active user on your website.
Because of that, the Person Schema is coming up empty and the issue appears on your website.
We recommend that you attach every page to a user on your website so that the Person Schema can be generated correctly and the warning corrected.
Hope this helps clarify your doubts.
Don’t hesitate to get in touch if you have any other questions.
Thank you Miguel,
we set authorname to all of our articles, posts and – with some code – to our products and submitted it to Search Console. We’ll see, if it works.
Hello,
We looked through some of the pages and can already see a difference in the Schema markup we mentioned before. It now all seems correct.
Let us know when the validation is finished if there are any other pages with this issue.
Looking forward to hearing back from you.
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.