Is your domain agenciacaput.com or www.agenciacaput.com.br?
Because your log seems to indicate it’s trying to get a certificate for the latter.
It’s failing because that domain has an AAAA record in your DNS, but the server doesn’t respond on IPv6. Assuming it’s the correct domain, you need to fix the server so it responds correctly on IPv6, or remove the AAAA record.