Hello,
Thank you for contacting Rank Math and sorry for any inconvenience that might have been caused due to that.
The review schema that is causing the error is not loaded by Rank Math as you can see on the following screenshot:
Please investigate whether this is added by your theme or one of your installed plugins to be able to fix the problem.
Google recently made some changes to the review guidelines one of which was to remove thing as a valid target type for reviews. We have an article with more info on this here:
https://rankmath.com/kb/how-to-fix-review-schema-errors/
Looking forward to helping you. Thank 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.