I found an answer.

[Solved] URL Forwarding error after install with VestaCP (Nginx Proxy)

Fortunately, I found solution for VestaCP to make NodeBB working properly. Hope it will be useful for others with the same problem. Create new domain in Ves...

NodeBB Community (community.nodebb.org)

Need just install forum to public_html of your domain and setup nginx ( see link below)

After this you can access forum by www. XXXXXXXXX

Who have VestaCP just see this guide.