Then
et's Encrypt SSL certificate installation failed:
Invalid response from https://acme-v01.api.letsencrypt.org/acme/new-authz: Error creating new authz :: Too many invalid authorizations recently.. Type: urn:acme:error:rateLimited.
Must wait a hour... ( Rate-limiting due to authz errors? )
The same problem.
Error: Unable to obtain Let's Encrypt SSL certificate because of failed challenge for domain "xxxxxxx.net":
Fetching http://xxxxxx.net/.well-known/acme-challenge/vaH1EfZWjBPNNbyhoJxcAPKYdo_0CguwwweJa3m3P8E: Timeout
I try all possible variants
www.xxxxxx.net
xxxxxx.net
None...