LetsEncrypt auto renew ---help

Still confused about renewal.

I still have another site with a valid lets-encrypt certificate

I just added a cronjob as root…

17 */12 * * * /home/bitnami/certbotsetup/certbot-auto --quiet

Then I issued the following commands…
openssl x509 -in /etc/letsencrypt/live/yeah-nothing.com/cert.pem -noout -dates

It doesn’t appear a new certificate was issued.

I edited the cronjob without the quiet flag…

17 */12 * * * /home/bitnami/certbotsetup/certbot-auto

I went into my Certbot direcory and ran “./certbot-auto

I got the following errors…

"Failed to find executable apache2ctl in PATH: /opt/bitnami/varnish/bin:/opt/bitnami/sqlite/bin:/opt/bitnami/php/bin:/opt/bitnami/mysql/bin:/opt/bitnami/apache2/bin:/opt/bitnami/common/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games
"
what’s happening here?