Challenge failed for domain

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My domain is:

I ran this command: Digital Ocean console setup

It produced this output: No SSL

My web server is (include version): Not sure

The operating system my web server runs on is (include version): Big Sur

My hosting provider, if applicable, is: Digital Ocean

I can login to a root shell on my machine (yes or no, or I don't know): Yes

I'm using a control panel to manage my site (no, or provide the name and version of the control panel):

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot): Not sure

I'm getting the following error when trying to set up Lets Encrypt, this has never happened before.

Challenge failed for domain
Challenge failed for domain

I know I messed up typing www.www.

The second one in which I didn't type www. prior the error said this:

Type: connection
Detail: Fetching
Timeout during connect (likely firewall problem)

Got this error as well An unexpected error occurred:
The server will not issue certificates for the identifier :: Error creating new order :: Cannot issue for "www.your_domain": Domain name contains an invalid character (and 1 more problems. Refer to sub-problems for more information.)

I bought a new domain to test set up with Digital Ocean and it failed on that to.

Challenge failed for domain
Challenge failed for domain

You need a functional HTTP site before you can secure it (via HTTP authentication).
*** can't find Server failed
*** can't find Server failed

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nslookup -q=ns        nameserver =        nameserver =        nameserver =

nslookup -q=ns
** server can't find REFUSED
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Looks like you got this working on these new domain names. Do you still need help?

I see the same as @rg305 for your old domain names. It seems your DNS records for it are missing.


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