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: uploads.sellingafrica.com
It produced this output: Failed authorization procedure. www.sellingafrica.com (http-01): urn:ietf:params:acme:error:connection :: The server could not connect to the client to verify the domain :: dns :: DNS problem: SERVFAIL looking up A for www.sellingafrica.com, uploads.sellingafrica.com (http-01): urn:ietf:params:acme:error:connection :: The server could not connect to the client to verify the domain :: dns :: DNS problem: SERVFAIL looking up A for uploads.sellingafrica.com IMPORTANT NOTES: - The following errors were reported by the server: Domain: www.sellingafrica.com Type: connection Detail: dns :: DNS problem: SERVFAIL looking up A for www.sellingafrica.com Domain: uploads.sellingafrica.com Type: connection Detail: dns :: DNS problem: SERVFAIL looking up A for uploads.sellingafrica.com To fix these errors, please make sure that your domain name was entered correctly and the DNS A/AAAA record(s) for that domain contain(s) the right IP address. Additionally, please check that your computer has a publicly routable IP address and that no firewalls are preventing the server from communicating with the client. If you're using the webroot plugin, you should also verify that you are serving files from the webroot path you provided. My web server is (include version): Ubuntu 18.04 VPS The operating system my web server runs on is (include version): Ubuntu 18.04 My hosting provider, if applicable, is: Digital Ocean (https://digitalocean.com) 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): no The version of my client is (e.g. output of `certbot --version` or `certbot-auto --version` if you're using Certbot):certbot 0.31.0