A test authorization for www.emplacaweb.com.br to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching https://emplacaweb.com.br/.well-known/acme-challenge/EoV22MeA6haQSJ4FAlFbVpL4tCvI61yq9Q6-BRlP2so: Timeout during connect (likely firewall problem)