Error when downloading SSL Certificate

I got this error when I try to Download SSL Certificate.
I cannot find any solutions.

Domain "nomdic.test.com" challenge3 failed. Response from "https://acme-v02.api.letsencrypt.org/acme/challenge/6cQFH4GRFyWvaabDz3r_ZHugml9cXVqrX0yldi7Ng3I/4522391980" was:

Error: Invalid response from http://nomdic.test.com/.well-known/acme-challenge/Hm50Bj0ZKd2ktoQDRveqHYea9YZHGsMwH0tHcoDHqC0: " <meta http-equiv="Conte"

Full Error: { "type": "http-01", "status": "invalid", "error": { "type": "urn:ietf:params:acme:error:unauthorized", "detail": "Invalid response from http://nomdic.test.com/.well-known/acme-challenge/Hm50Bj0ZKd2ktoQDRveqHYea9YZHGsMwH0tHcoDHqC0: "\u003c!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd\"\u003e\n\u003chtml\u003e\n\u003chead\u003e\n\u003cmeta http-equiv="Conte"", "status": 403 }, "url": "https://acme-v02.api.letsencrypt.org/acme/challenge/6cQFH4GRFyWvaabDz3r_ZHugml9cXVqrX0yldi7Ng3I/4522391980", "token": "Hm50Bj0ZKd2ktoQDRveqHYea9YZHGsMwH0tHcoDHqC0", "validationRecord": [ { "url": "https://www.test.com/", "hostname": "www.test.com", "port": "443", "addressesResolved": [ "69.172.200.235" ], "addressUsed": "69.172.200.235" }, { "url": "http://nomdic.test.com/.well-known/acme-challenge/Hm50Bj0ZKd2ktoQDRveqHYea9YZHGsMwH0tHcoDHqC0", "hostname": "nomdic.test.com", "port": "80", "addressesResolved": [ "69.172.200.109" ], "addressUsed": "69.172.200.109" } ] }

Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. https://crt.sh/?q=example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is:

I ran this command:

It produced this output:

My web server is (include version):

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

My hosting provider, if applicable, is:

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

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

Unless your server is at those addresses, you won't be able to complete the validation challenge.

FYI:
Name: www.test.com
Address: 69.172.200.235
Name: nomdic.test.com
Address: 69.172.200.109

It could be he actually owns test.com :grin:

Or he wants to [p]own it !
Hey, he should get a cert for Google.com if this test(.com) works.
pwn fail
-ROFL

I do not use www.test.com as my domain name.
How can I remove it?

My web server is Ubuntu 16.04 and Nginx

We are seriously lacking information here. Could you please completely fill in the questionnaire I posted earlier?

Your ACME client seems to think so.
Try finding where with:
grep -ri test.com /etc/nginx

My domain is: nomdic.test.com

I ran this command: I click button “Download SSL Certificate” from the page.

It produced this output: as above

My web server is (include version): Nginx

The operating system my web server runs on is (include version): Ubuntu 16.04

My hosting provider, if applicable, is:

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

Name: nomdic.test.com
Address: 69.172.200.109
Is that your IP?
If not, then you need to have the DNS changed to your IP.

What page? Screenshot?

It must be on the control panel he isn't using.

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