cloud.musicmasterward.be has an A (IPv4) record (81.247.203.115) 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 cloud.musicmasterward.be/81.247.203.115: Get "http://cloud.musicmasterward.be/.well-known/acme-challenge/letsdebug-test": context deadline exceeded
Trace:
@0ms: Making a request to http://cloud.musicmasterward.be/.well-known/acme-challenge/letsdebug-test (using initial IP 81.247.203.115)
@0ms: Dialing 81.247.203.115
@10000ms: Experienced error: context deadline exceeded
A test authorization for cloud.musicmasterward.be to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
81.247.203.115: Fetching http://cloud.musicmasterward.be/.well-known/acme-challenge/t5QrpDPyXPK57hlZfW7lshu9s3nm9juuUR5whuxABKw: Timeout during connect (likely firewall problem)