Openvpn command not found

Hi!
I got stuck in the OpenVPN server config with no openvpn command found.

# openvpn --genkey tls-crypt-v2-server ${EASYRSA_PKI}/private/server.pem
-ash: openvpn: not found

What to do? I went thorough the packages list and I have everything installed:
openvpn-easy-rsa
openvpn-openssl
luci-app-openvpn
luci-i18n-openvpn-en

Do I need something else?

To make sure it is not the specific command which is wrong please show the output of:
openvpn --version

To double check if you have installed all packages:
opkg list | grep openvpn