Well, if someone doesn’t know how to run commands in an appropriate directory, that’s another issue, but…
I have the same problem.
./certbot-auto
Upgrading certbot-auto 0.7.0 to 0.8.1…
Replacing certbot-auto…
No installers seem to be present and working on your system; fix that or try running certbot with the “certonly” command
You know, when one is making software, one should always be intelligent enough to provide sufficient details and not, sorry for the technical term, bullshit messages like this one. What does that mean, that I don’t have the newest tetris installer? Of course running letsencrypt-auto ends up spewing the same nondescript nonsense message.