Let's encrypt certificate not seruce chrome?

[rmortenen84]

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:

nextcloud.rmortensen84.tk

I ran this command:

It produced this output:

My web server is (include version):
Apache/2.4.25 (Debian)

The operating system my web server runs on is (include version):
Debian 9 Stretch

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

I have problems every time i have to access my domain on google chrome which is secured by Letsencrypt on an appache server that says the domain is NOT safe but other browser is not trouble-why? - And how do I fix this :)?

[Osiris]

What message, info or error do you see/get on browsers when it says the site isn’t safe? Possibly, you’ll need to click on the broken lock to get that info.

[JuergenAuer]

My Chrome:

Looks good.

[rmortenen84]

Okay, I have unfortunately not saved the error I get: /: / - But next time I get the error on a chrome browser, can I try to take the print screen :)?