dstream.tiemann.support has an A (IPv4) record (37.24.61.198) 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 dstream.tiemann.support/37.24.61.198: Get "http://dstream.tiemann.support/.well-known/acme-challenge/letsdebug-test": context deadline exceeded
Trace:
@0ms: Making a request to http://dstream.tiemann.support/.well-known/acme-challenge/letsdebug-test (using initial IP 37.24.61.198)
@0ms: Dialing 37.24.61.198
@10000ms: Experienced error: context deadline exceeded
A test authorization for dstream.tiemann.support to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
37.24.61.198: Fetching http://dstream.tiemann.support/.well-known/acme-challenge/q3VijfQ7mehyAGWhThfdKPLsF9v0IMdniodPvWIEGAk: Timeout during connect (likely firewall problem)