www.checkplz.app has an A (IPv4) record (3.135.129.68) 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.checkplz.app/3.135.129.68: Get "http://www.checkplz.app/.well-known/acme-challenge/letsdebug-test": context deadline exceeded
Trace:
@0ms: Making a request to http://www.checkplz.app/.well-known/acme-challenge/letsdebug-test (using initial IP 3.135.129.68)
@0ms: Dialing 3.135.129.68
@10000ms: Experienced error: context deadline exceeded
A test authorization for www.checkplz.app to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
3.135.129.68: Fetching http://www.checkplz.app/.well-known/acme-challenge/tBeZ9ukbGEYlMMcmdyJ4gMswwPxZG73sagvD0_ArBtI: Timeout during connect (likely firewall problem)