this is my error:
Failed authorization procedure.
example.doman.com (http-01): urn:ietf:params:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response from http://
example.doman.com /.well-known/acme-challenge/aV8Cc3qK2hovp7sSMV66zrP3cxPwNZd3-Ja8c51hpi8 [185.208.175.29]: "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"
http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\r\n<html xmlns=\"http"
IMPORTANT NOTES:
- The following errors were reported by the server:
Type: unauthorized
Detail: Invalid response from
http://
example.doman.com /.well-known/acme-challenge/aV8Cc3qK2hovp7sSMV66zrP3cxPwNZd3-Ja8c51hpi8
[185.208.175.29]: "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0
Strict//EN\"
xmlns=\"http"
To fix these errors, please make sure that your domain name was
entered correctly and the DNS A/AAAA record(s) for that domain
contain(s) the right IP address.
cp: cannot stat '/tmp/bigbluebutton.bak': No such file or directory
bbb-install: Let's Encrypt SSL request for
example.doman.com did not succeed - exiting