Unable to pass certificat verification (and install zulip)

My domain is:

glope.ddns.net

I ran this command:

./zulip-server-*/scripts/setup/install --certbot --email=juliennatter@gmail.com --hostname=glope.ddns.net

It produced this output:

Obtaining a new certificate
Performing the following challenges:
http-01 challenge for glope.ddns.net
Waiting for verification...
Challenge failed for domain glope.ddns.net
http-01 challenge for glope.ddns.net
Cleaning up challenges
Some challenges have failed.
IMPORTANT NOTES:
 - The following errors were reported by the server:

   Domain: glope.ddns.net
   Type:   unauthorized
   Detail: Invalid response from
   http://glope.ddns.net/.well-known/acme-challenge/047gbtFOCixyWIn8GpJYoqP96rSBW1JCIhtIQ3D9DRM
   [37.58.169.65]: "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML
   2.0//EN\">\n<html><head>\n<title>404 Not
   Found</title>\n</head><body>\n<h1>Not Found</h1>\n<p"

   To fix these errors, please make sure that your domain name was
   entered correctly and the DNS A/AAAA record(s) for that domain
   contain(s) the right IP address.

Zulip installation failed!

The install process is designed to be idempotent, so you can retry after resolving whatever issue caused the failure (there should be a traceback above). A log of this installation is available in /var/log/zulip/install.log

My web server is (include version):

Nginx

The operating system my web server runs on is (include version):

Ubuntu server 18.0.2

My hosting provider, if applicable, is:

my.noip.com

I can login to a root shell on my machine (yes or no, or I don’t know):

Yes

I’m using a control panel to manage my site (no, or provide the name and version of the control panel):

no

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you’re using Certbot):

certbot 0.36.0

Thank’s for your help

Hi @busan

I don't know how that script works. Checking your domain there is an Apache - https://check-your-website.server-daten.de/?q=glope.ddns.net

Domainname Http-Status redirect Sec. G
http://glope.ddns.net/
37.58.169.65 403 0.100 M
Forbidden
https://glope.ddns.net/
37.58.169.65 -10 0.266 P
SecureChannelFailure - The request was aborted: Could not create SSL/TLS secure channel.
http://glope.ddns.net/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
37.58.169.65 404 0.086 A
Not Found

The last row looks good.

Perhaps you have duplicated vHost definitions.

What says

apachectl -S

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