DNS problem: NXDOMAIN looking up A for

We have pointed the domain to our subdomain “Smartmilk” on digital ocean ( Respective A and CNAME records are addred and “” is accessible. But facing error while installing the SSL certificate.

The following errors were reported by the server:

Domain: Type: None Detail: DNS problem: NXDOMAIN looking up A for - check that a DNS record exists for this domain

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As far as I can see you do not have a CNAME record for your www version:

What you would need to do is to add a CNAME record for to point to your non-www version:

That way Let’s Encrypt will be able to validate your www version too and issue a certificate for you.

Let me know how it goes.

Regards, Bobby