Connecting to https://acme-v02.api.letsencrypt.org/acme/new-order
$VAR1 = {
          'reason' => 'Bad Request',
          'status' => '400',
          'success' => '',
          'content' => '{
  "type": "urn : ietf : params : acme : error : malformed", <-- hier musste ich Blanks einfügen, weil die Forumsoftware sonst einen Absturz hat
  "detail": "No Key ID in JWS header",
  "status": 400
}',
          'url' => 'https://acme-v02.api.letsencrypt.org/acme/new-order',
          'protocol' => 'HTTP/1.1',
          'headers' => {
                         'connection' => 'keep-alive',
                         'date' => 'Fri, 06 Aug 2021 09:18:27 GMT',
                         'replay-nonce' => '0002SHFmxPnz1LajrfgdtE_gDDlqh5CxGsOQw4BqrcriXUk',
                         'content-length' => '108',
                         'link' => '<https://acme-v02.api.letsencrypt.org/directory>;rel="index"',
                         'cache-control' => 'public, max-age=0, no-cache',
                         'content-type' => 'application/problem+json',
                         'server' => 'nginx'
                       }
        };
Cannot request challenges - No Key ID in JWS header(400).