Which certificate do I Download & from where?

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. crt.sh | 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: trilqiuorx.com

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: Arvixe

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):

Without the answers to a lot more of those questions, and specifics about what you're trying to do, it's going to be very hard for anyone here to help you. Generally you don't "download" a certificate from anywhere, but you have software that manages requesting, managing, and installing it wherever your system needs it.

Maybe the first question is, are you using some kind of "shared hosting" where your only access is through some control panel, or are you administrating web servers yourself?

Shared hosting I use cPanel. Arvixe said to download it and they would help install it.

There shouldn't be any manual steps in certificate installation. If your cPanel doesn't have the automatic system enabled to just get and use certificates for you (which is really what should be the case), but the cPanel is set up to allow for the use of other certificates, and if your hosting can run PHP scripts, then you might want to use CertSage. It's a PHP script that can request the certificate and automatically install it into cPanel.