wizzyto12
For everyone struggling to switch back to letsencrypt, go to /etc/letsencrypt/config/account.conf and edit it. Add the following line at the end of the file:
DEFAULT_CA=https://acme-v02.api.letsencrypt.org/directory
Save & close. You should be able to issue a certificate with letsencrypt again.
Actually, it will fail.
The right way as below:
After "Save & Close" of Nano editor, and also you need exit the terminal and reopen a new terminal, and run the command line:
acme.sh --set-default-ca --server letsencrypt
It will show as below:
root@1U2G:~# acme.sh --set-default-ca --server letsencrypt
[Fri Aug 27 04:01:52 UTC 2021] Changed default CA to: https://acme-v02.api.letsencrypt.org/directory