My domain is: mkonferencja.pl
My operating system is: Windows 10
My web server is: CentOS 6.0 64-Bit, Apache/2.4.25
My hosting provider, if applicable, is: hitme.pl
I can login to a root shell on my machine: yes
I’m using a control panel to manage my site: DirectAdmin 1.51.3
When I try to go to my website via Chrome 57.0.2987.110 (64-bit) or Opera 43.0.2442.1144 I get an error that “This CA Root certificate is not trusted because it is not in the Trusted Root Certification Authorities store”. I have checked my site via a few SSL checkers and with all of them it works OK except this one: https://www.sslchecker.com It says that
What is wrong with my configuration then?