OpenVPN Road Warrior edition + Duo OpenVPN 2FA -- Cant make it work, Need Help

Hello all, I’ve created an OpenVPN server on my AWS Lightsail instance using this script 'wget https://git.io/vpn -O openvpn-install.sh’

The only difference I’ve noticed it that the conf file is a little different than what the instructions on Duo say to look.

It works great but I would like to protect it with Duo.

I’ve created the application in Duo and also the user ubuntu in Duo.

I’ve installed the Duo packages and built them.
tar zxf 2.4.tar.gz** ** cd duo_openvpn-2.4
$ make && sudo make install

I’ve defined the plugin in my /ETC/OpenVPN/Server/Server.conf
plugin /opt/duo/duo_openvpn.so 'DQQQQQQQQQQQQQQQQQQQQ jxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxS ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■
and added reneg-sec 0
I’ve created a new CA for user ubuntu and added auth-user-pass and reneg-sec 0 to the CA file.

When I connect, I use ubuntu as user and push as password, but I cant login.

Does the Road Warrior VPN work with Duo?