Sending an ACME HTTP validation request to 20842.org results in an unacceptable redirect. This is most likely a misconfiguration of your web server or your web application.
It appears that a redirect was generated by your web server that is missing a trailing slash after your domain name: https://20842.org.well-known/acme-challenge/letsdebug-test. Check your web server configuration and .htaccess for Redirect/RedirectMatch/RewriteRule.
Trace:
@0ms: Making a request to http://20842.org/.well-known/acme-challenge/letsdebug-test (using initial IP 2600:3c03::f03c:92ff:fed9:43b4)
@0ms: Dialing 2600:3c03::f03c:92ff:fed9:43b4
@1ms: Server response: HTTP 301 Moved Permanently
@1ms: Received redirect to https://20842.org.well-known/acme-challenge/letsdebug-test
Sending an ACME HTTP validation request to 20842.org results in an unacceptable redirect. This is most likely a misconfiguration of your web server or your web application.
It appears that a redirect was generated by your web server that is missing a trailing slash after your domain name: https://20842.org.well-known/acme-challenge/letsdebug-test. Check your web server configuration and .htaccess for Redirect/RedirectMatch/RewriteRule.
Trace:
@0ms: Making a request to http://20842.org/.well-known/acme-challenge/letsdebug-test (using initial IP 97.107.137.48)
@0ms: Dialing 97.107.137.48
@0ms: Server response: HTTP 301 Moved Permanently
@0ms: Received redirect to https://20842.org.well-known/acme-challenge/letsdebug-test
A test authorization for 20842.org to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching https://20842.org.well-known/acme-challenge/vKdvKLc8yuCwidHrzzb0QuU8ZCodjRh2wA7pPkB_-yg: Invalid host in redirect target "20842.org.well-known". Check webserver config for missing '/' in redirect target.