Can't connect to VPN in network manager for KDE in Kubuntu 19.04

I have nordvpn and have used the openvpn config files on their website for a while on gnome and it has worked perfectly. I switched to KDE and in the network manager I can import vpn settings from the config file the same as in gnome and enter my username and password, but when I press the connect button nothing happens. It doesn't give any error it just does nothing.

Here is the button I'm talking about

Solution 1:

Make sure that you have all the required packages like network-manager-openvpn (or in my case network-manager-openconnect) or some other packages in apt search networkmanager or apt search network-manager. Unfortunately, when these packages are missing, it does not display any error message -- it just "does nothing"