You were right TinCanTech, I renamed the 2nd file to *.bak, but now I have errors because the file doesn't exist anymore. How can I remove it from startup?
I tried
sudo service openvpn@ovpn.service disable
May 04 11:32:03 raspberrypi systemd[1]:
openvpn@ovpn.service: Service RestartSec=5s expired, scheduling restart.
May 04 11:32:03 raspberrypi systemd[1]:
openvpn@ovpn.service: Scheduled restart job, restart counter is at 327.
May 04 11:32:03 raspberrypi systemd[1]: Stopped OpenVPN connection to ovpn.
May 04 11:32:03 raspberrypi systemd[1]: Starting OpenVPN connection to ovpn...
May 04 11:32:03 raspberrypi ovpn-ovpn[19213]: Options error: In [CMD-LINE]:1: Error opening configuration file: /etc/openvpn/ovpn.conf