I install one certificate and my website ask not secure

[CREMX]

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):

[JuergenAuer]

Hi @CREMX

please answer all questions.

@CREMX

My domain is: www.cremx.org

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.