@Code_Gaug Yes, the link is hidden on the page, I found it in a description of how to set up a router on the nordvpn.com website. Hope it helps

@Code_Gaug You can download the certificates, so no need to take them from your ovpn file:
https://downloads.nordcdn.com/configs/archives/certificates/servers.zip

Also, if you go to the nordvpn.com page and you see "protected" at the beginning of the page, the vpn setup worked.