www.emplacaweb.com.br has an A (IPv4) record (45.15.24.138) but a request to this address over port 80 did not succeed. Your web server must have at least one working IPv4 or IPv6 address.
Get "http://www.emplacaweb.com.br/.well-known/acme-challenge/letsdebug-test": dial tcp 45.15.24.138:80: connect: connection refused
Trace:
@0ms: Making a request to http://www.emplacaweb.com.br/.well-known/acme-challenge/letsdebug-test (using initial IP 45.15.24.138)
@0ms: Dialing 45.15.24.138
@23ms: Experienced error: dial tcp 45.15.24.138:80: connect: connection refused