One day, I received an email from let’s encrypt that said my SSL for one of my apps is almost expired. Then I connect to the server.
First, I check my certbot version, it’s using the last recent one when this article is published.
I tried to dry-run the certbot, and I have this problem.

It’s a bit weird, but after searching for many sites, I fixed the problem by upgrading the python3-acme package.
The command is like this.
sudo apt update
sudo apt install — only-upgrade python3-acme
That’s all for today's issue.