Custom domain not resolving

I have a custom domain added to one of our apps.
It was working perfect before today’s outage.
There was a major release planned for this weekend and we’re expecting a lot of clients to visit our page.

dns from render works: https://t3d-landing.onrender.com/
my domain does not work: https://tumor3d.com/

Please let me know how to resolve this issue.

Hello, we already resolved this issue. Sorry for the inconvenience.