viberchatbot.ga has an A (IPv4) record (141.147.63.84) 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 viberchatbot.ga/141.147.63.84: Get "https://viberchatbot.ga/.well-known/acme-challenge/letsdebug-test": context deadline exceeded
Trace:
@0ms: Making a request to http://viberchatbot.ga/.well-known/acme-challenge/letsdebug-test (using initial IP 141.147.63.84)
@0ms: Dialing 141.147.63.84
@177ms: Server response: HTTP 301 Moved Permanently
@177ms: Received redirect to https://viberchatbot.ga/.well-known/acme-challenge/letsdebug-test
@178ms: Dialing 141.147.63.84
@10001ms: Experienced error: context deadline exceeded