www.microlink.com.my has an A (IPv4) record (52.237.79.2) 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 www.microlink.com.my/52.237.79.2: Get "http://www.microlink.com.my/.well-known/acme-challenge/letsdebug-test": dial tcp 52.237.79.2:80: i/o timeout
Trace:
@0ms: Making a request to http://www.microlink.com.my/.well-known/acme-challenge/letsdebug-test (using initial IP 52.237.79.2)
@0ms: Dialing 52.237.79.2
@10001ms: Experienced error: dial tcp 52.237.79.2:80: i/o timeout
A test authorization for www.microlink.com.my to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
52.237.79.2: Fetching http://www.microlink.com.my/.well-known/acme-challenge/KyfaS0s6g66tn-yY5l-jG16LzOzDQhAP4nDr0BzKpUA: Timeout during connect (likely firewall problem)