Hello,
Thank you for contacting the support, and sorry for any inconvenience that might have been caused due to that.
You seem to have duplicate schema and the breadcrumbs schema that was shown on Rich Snippet with an error isn’t coming from Rank Math, it is likely to be coming from a plugin or from your theme. To determine that, please follow this guide: https://rankmath.com/kb/check-plugin-conflicts/
Only the site admin would know and your users won’t be affected by this troubleshooting.
Let us know how that goes. Looking forward to helping you with this one.
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.