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. https://crt.sh/?q=example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
My domain is: propertuu.com
I ran this command: issue certificate
It produced this output: * Error issuing certificate
- Failed to issue certificate
- Updating challenge for mail.propertuu.com: acme: error code 400 “urn:ietf:params:acme:error:dns”: DNS problem: SERVFAIL looking up A for mail.propertuu.com (order URL: https://acme-v02.api.letsencrypt.org/acme/order/39609553/37896786)
I’m using a control panel to manage my site (no, or provide the name and version of the control panel):