Hello,
Thank you for contacting Rank Math and bringing your concern to our attention. I’m sorry for any inconvenience this issue may have caused you.
Could you please share the affected URL so we can check as well?
Meanwhile, please try removing the schema and then save the page. Once done, add again the schema and check if the issue still persists.
Let us know how this goes.
Thank you.
Hello,
I checked the URL with the Rich Snippet tool, the URL is validated without any warnings:

Can you please clear your website cache and check again?
Let us know how it goes.
We are here to assist you.
hi you checked using url but if you use code then this error will show again i checked in url its working but code search its showing error missing url.
Hello,
I checked with the code and the Schema is validated without any warnings:

For Article schema, you need to paste the full HTML source of the page into the rich results test.
Hope this helps.
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.