kamarweb.mcglashan.school.nz has an A (IPv4) record (220.127.116.11) 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 kamarweb.mcglashan.school.nz/18.104.22.168: Get "http://kamarweb.mcglashan.school.nz/.well-known/acme-challenge/letsdebug-test": dial tcp 22.214.171.124:80: i/o timeout
@0ms: Making a request to http://kamarweb.mcglashan.school.nz/.well-known/acme-challenge/letsdebug-test (using initial IP 126.96.36.199)
@0ms: Dialing 188.8.131.52
@10001ms: Experienced error: dial tcp 184.108.40.206:80: i/o timeout
A test authorization for kamarweb.mcglashan.school.nz to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching http://kamarweb.mcglashan.school.nz/.well-known/acme-challenge/DaoiLQMOUAxUibBdMooAN0bA3-LPwlt0-nYnoILffvI: Timeout during connect (likely firewall problem)