ratza-ratza.com has an A (IPv4) record (82.208.173.31) 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 ratza-ratza.com/82.208.173.31: Get "http://ratza-ratza.com/.well-known/acme-challenge/letsdebug-test": context deadline exceeded
Trace:
@0ms: Making a request to http://ratza-ratza.com/.well-known/acme-challenge/letsdebug-test (using initial IP 82.208.173.31)
@0ms: Dialing 82.208.173.31
@10000ms: Experienced error: context deadline exceeded