Failed authorization procedure. old.grantlar.uz (http-01): urn:acme:error:connection :: The server could not connect to the client to v erify the domain :: Fetching http://old.grantlar.uz/.well-known/acme-challenge/EzrACnn8suEsN08K5IUunMJTiT9yLGk-O4W6AHzsXwE: Error getti ng validation data
The following errors were reported by the server:
Error getting validation data
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. Additionally, please check that
your computer has a publicly routable IP address and that no
firewalls are preventing the server from communicating with the
client. If you’re using the webroot plugin, you should also verify
that you are serving files from the webroot path you provided.
help please what could be the problem?