Detail: DNS problem: NXDOMAIN looking up A for wildcard.charbroil.com - check that a DNS record exists for this domain; DNS problem: NXDOMAIN looking up AAAA for wildcard.charbroil.com - check that a DNS record exists for this domain*
Hint: The Certificate Authority failed to download the temporary challenge files created by Certbot. Ensure that the listed domains serve their content from the provided --webroot-path/-w and that files created there can be downloaded from the internet.
Some challenges have failed. Ask for help or search for solutions at https://community.letsencrypt.org. See the logfile C:\Certbot\log\letsencrypt.log or re-run Certbot with -v for more details.
My web server is (include version): My server version is Windows R2 2008
The operating system my web server runs on is (include version): My OS is Windows R2 2008
My hosting provider, if applicable, is:
I can login to a root shell on my machine (yes or no, or I don't know): Yes, I can login as root shell on my machine
I'm using a control panel to manage my site (no, or provide the name and version of the control panel): Yes
The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot):
The --webroot method is an HTTP Challenge. You must have an A and/or AAAA record in your DNS so the Let's Encrypt server can find your IP. And, anyone on the public internet needs that too.
Based on the webroot folder shown (inetpub) it looks like you might be using IIS as your server. Certbot requires manual steps after getting the cert to update IIS. You might be better off using a Windows based ACME Client like Certify the Web or win-acme.
I have to ask...
When you write "wildcard" in the name, do you want a cert with that exact name OR do you want a certificate that can cover many names (i.e. an actual "wildcard" certificate - like "*.example.com")?