staging.bintangprospek.com has an A (IPv4) record (103.86.178.23) 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.
A timeout was experienced while communicating with staging.bintangprospek.com/103.86.178.23: Get "http://staging.bintangprospek.com/.well-known/acme-challenge/letsdebug-test": context deadline exceeded
Trace:
@0ms: Making a request to http://staging.bintangprospek.com/.well-known/acme-challenge/letsdebug-test (using initial IP 103.86.178.23)
@1ms: Dialing 103.86.178.23
@10002ms: Experienced error: context deadline exceeded
A test authorization for staging.bintangprospek.com to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching http://staging.bintangprospek.com/.well-known/acme-challenge/855AERAH097F8HG-LR4Zr8IUZC7hspJ3KzZpyJKIQOY: Timeout during connect (likely firewall problem)