Could not issue a Let's Encrypt SSL/TLS certificate

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1

Hello,

We are trying to issue New Let’s Encrypt SSL/TLS certificate for our domain. we are getting below error.

Error: Could not issue a Let’s Encrypt SSL/TLS certificate for millerdiversified.com.

The authorization token is not available at http://millerdiversified.com/.well-known/acme-challenge/Rn9b7gkW2pgNpf2kBW3UNtU5O34KkBHRE7h5R0xQVfo.
To resolve the issue, make it possible to download the token file from the URL above.
See the related Knowledge Base article for details.
Details
Invalid response from https://acme-v01.api.letsencrypt.org/acme/authz/YWy79pCxde1JFFnVKopYzvDe2lGUB3qfhO1LCtAUKVI.
Details:
Type: urn:acme:error:unauthorized
Status: 403
Detail: Invalid response from http://millerdiversified.com/.well-known/acme-challenge/Rn9b7gkW2pgNpf2kBW3UNtU5O34KkBHRE7h5R0xQVfo: "
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2

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My domain is:

I ran this command:

It produced this output:

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