This afternoon I'm adding https://digital.grinnell.edu (site ID is 17) to my own Matomo instance and I'm prompted to upgrade PHP on that Matomo droplet (DigitalOcean). I did so quite easily following Upgrade PHP from 7.2 to 7.4 on CentOS 8 and Apache. I've also updated my Drupal version, and some modules, in https://digital.grinnell.edu along with adding the matomo module, but that module is now reporting:

    The validation of "http://analytics.summittservices.com/matomo.php" failed with error "Error opening socket ssl://analytics.summittservices.com:443" (HTTP code 0).
    The validation of "https://analytics.summittservices.com/matomo.php" failed with error "Error opening socket ssl://analytics.summittservices.com:443" (HTTP code 0).

Hmmm...wonder what's up with that?

So, I tried this...

Last login: Mon Jun 12 19:21:45 2023 from 162.243.190.66
[root@centos-s-1vcpu-1gb-nyc1-01 ~]# sudo certbot renew
Saving debug log to /var/log/letsencrypt/letsencrypt.log

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Processing /etc/letsencrypt/renewal/summittservices.com-0001.conf
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Renewing an existing certificate for summittservices.com and analytics.summittservices.com
Reloading nginx server after certificate renewal

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Processing /etc/letsencrypt/renewal/summittservices.com.conf
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Renewing an existing certificate for summittservices.com and www.summittservices.com
Reloading nginx server after certificate renewal

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Congratulations, all renewals succeeded: 
  /etc/letsencrypt/live/summittservices.com-0001/fullchain.pem (success)
  /etc/letsencrypt/live/summittservices.com/fullchain.pem (success)
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...and... NO more validation errors! Yay!