I'm not the original submitter, but I also encountered this today when
running certbot for the first time. I've attached the relevant portion
of the log. It looks like the *actual* problem was a 404 from the
Let's Encrypt server, causing a Python exception, but that got replaced
by a different exception due to a bug in the Certbot code meant to
display the original one.

I re-ran the same Certbot command and it worked the second time, so the
404 seems to have been a transient problem. It may have been the
problem described here: https://community.letsencrypt.org/t/occasional-no-such-authorization/191497

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--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)