This was pretty easy to fix for my needs. If you can use LetsEncrypt, as not all SSL is created equal... Simply go through the process of getting yourself a cert from LetsEncrypt. Then collapse the key and cert, like so:

cat /etc/letsencrypt/live/example.com/cert.pem >> /etc/ajenti/le_ajenti.cert
cat /etc/letsencrypt/live/example.com/privkey.pem >> /etc/ajenti/le_ajenti.cert

~ Next edit the Ajenti configuration file:

vi /etc/ajenti/config.json

~ Now, point to your newly created cert within the config and then restart ye' ole' Ajenti service and you're back in business.

systemctl restart ajenti

And donezo!