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:bsgcars.com.ng
I ran this command: tried activation ssl in my vesta cpanel area.
It produced this output:error code 15
My web server is (include version): Google Cloud Commute Engine
The operating system my web server runs on is (include version): ubuntu 16.04
My hosting provider, if applicable, is: DCP
I can login to a root shell on my machine (yes or no, or I don’t know): YES i can
I’m using a control panel to manage my site (no, or provide the name and version of the control panel): latest version of Vestacp
The version of my client is (e.g. output of certbot --version or certbot-auto --version if you’re using Certbot): latest version