I install one certificate and my website ask not secure

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: www.cremx.org

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):

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

Hi @CREMX

please answer all questions.

You have created two certificates ( https://check-your-website.server-daten.de/?q=cremx.org#ct-logs ):

Issuer not before not after Domain names LE-Duplicate next LE
Let’s Encrypt Authority X3 2019-08-12 2019-11-10 cremx.org, www.cremx.org
2 entries duplicate nr. 2
Let’s Encrypt Authority X3 2019-08-12 2019-11-10 cremx.org, www.cremx.org
2 entries duplicate nr. 1

But you don’t use it.

Domainname Http-Status redirect Sec. G
http://cremx.org/
192.155.250.194 200 0.447 H
http://www.cremx.org/
192.155.250.194 200 0.434 H
https://cremx.org/
192.155.250.194 200 4.390 N
Certificate error: RemoteCertificateNameMismatch, RemoteCertificateChainErrors
https://www.cremx.org/
192.155.250.194 200 4.910 N
Certificate error: RemoteCertificateNameMismatch, RemoteCertificateChainErrors

Instead, there is a self signed and another certificate:

CN=www.kot.mx, 
OU=Domain Control Validated
	12.05.2015
	12.05.2018
457 days expired	www.kot.mx, kot.mx - 2 entries

That’s from Godaddy.