https://community.kodular.io/t/i-need-openvpn-extension-please-help-me/204519?u=still-learning
Duplicate post
Most of the things cannot available free of cost. Else you make a request extension developers will create for you.. you asked open vpn extension, but i shared you paid extension..
Also I strongly suggest you to use search option. 
In the picture.. there 36 results regarding vpn extension in our community