Doing the LetsEncrypt docker logs part of the "Host your own secure wiki server with a Raspberry Pi" tutorial outputs an error message stating that a component is deprecated and needs manual updating.

[SublimeYadon]

I was running through the aforementioned tutorial, and while the wiki is up and accessible from the Internet I get the below error message after inputting docker logs -f letsencrypt:

ACME server returned an error: urn:acme:error:serverInternal :: The server experienced an internal error :: ACMEv1 is deprecated and you can no longer get certificates from this endpoint. Please use the ACMEv2 endpoint, you may need to update your ACME client software to do so. Visit https://community.letsencrypt.org/t/end-of-life-plan-for-acmev1/88430/27 for more information.

I'm not sure how to fix this on my end, but I figure I'd mention it here so it's on record.