rmm.aptechnologiesgroup.com has an A (IPv4) record (108.34.212.60) 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 rmm.aptechnologiesgroup.com/108.34.212.60: Get "http://rmm.aptechnologiesgroup.com/.well-known/acme-challenge/letsdebug-test": dial tcp 108.34.212.60:80: i/o timeout
Trace:
@0ms: Making a request to http://rmm.aptechnologiesgroup.com/.well-known/acme-challenge/letsdebug-test (using initial IP 108.34.212.60)
@0ms: Dialing 108.34.212.60
@10001ms: Experienced error: dial tcp 108.34.212.60:80: i/o timeout
A test authorization for rmm.aptechnologiesgroup.com to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
108.34.212.60: Fetching http://rmm.aptechnologiesgroup.com/.well-known/acme-challenge/k6w3vxWlgHKUPXsAvJ6GX3jLDlwvYdQHNmvnVaf8VeA: Timeout during connect (likely firewall problem)