Problem in SSL Cerfication

Below is my issues:

An unexpected error occurred: Error creating new order :: too many failed authorizations recently: see Failed Validation Limit - Let's Encrypt Ask for help or search for solutions at See the logfile /var/lo:

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Any hel please

I am just signing off for the night but you can help other volunteers to help you by answering the questions from the form you were shown. Thank you


Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. |, so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is:

I ran this command:

It produced this output:

My web server is (include version):

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

My hosting provider, if applicable, is:

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

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):


Certbot failed to authenticate some domains (authenticator: apache). The Certificate Authority reported these problems:
Type: dns
Detail: DNS problem: NXDOMAIN looking up A for - check that a DNS record exists for this domain; DNS problem: NXDOMAIN looking up AAAA for - check that a DNS record exists for this domain

Hint: The Certificate Authority failed to verify the temporary Apache configuration changes made by Certbot. Ensure that the listed domains point to this Apache server and that it is accessible from the internet.

Some challenges have failed.
Ask for help or search for solutions at See the logfile /var/log/letsencrypt/letsencrypt.log or re-run Certbot with -v for more details.

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Any help on second problem please

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The subdomain www does not exist in the DNS zone for Either add the subdomain with the correct A and/or AAAA records or don't request a certificate for the www subdomain`.


created sub domain


What's missing is:


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