How configure cwp for insallation openvpn?

Hi,
After install OpenVPN Access Server in cwp all my site with ssl error and without ssl normal.
This site https://www.digitalocean.com/community/tutorials/openvpn-access-server-centos
i used for installastion document.
After installation in https://server_ip_or_domain:943/admin i have error :
 Forbidden
Request was forbidden.
Help me please!

You have shared worth information on installation of open vpn. Last month, I had searched on internet for best vpn for China and got to know about different vpn providers. Signed up with the best services and got their services in my budget only.