SSL certificate provisioning fails after successful DNS verification — “certificate parameter is required”

Hi Netlify Support,

I’m having an SSL certificate provisioning issue with my custom domain.

Netlify site: dapper-praline-04a434.netlify.app
Primary domain: studiorafit.ir
Domain alias: www.studiorafit.ir
DNS provider: Netlify DNS

The domain’s DNS verification is successful in Netlify, and both studiorafit.ir and www.studiorafit.ir show the green Netlify DNS status.

The four Netlify nameservers are also publicly propagated:

  • dns1.p05.nsone.net

  • dns2.p05.nsone.net

  • dns3.p05.nsone.net

  • dns4.p05.nsone.net

I have also confirmed that the nameservers are visible from multiple public DNS resolvers.

However, Let’s Encrypt certificate provisioning has been failing for more than a week with:

We could not provision a Let’s Encrypt certificate for your custom domain.

After trying to verify/provision again, I am now also getting an error along the lines of:

certificate parameter is required when updating an existing certificate

I have already checked the DNS configuration and the nameserver delegation is correct. DNS verification itself succeeds.

Could you please check whether there is a stale/broken SSL certificate state associated with this site and reset/clear the existing certificate state so that a fresh Let’s Encrypt certificate can be provisioned?

Thank you!