Thanks for reply.
Thanks yariplus and julian. When i edit template, i run ./nodebb upgrade and ./nodebb restart
It recovery template.
I think i know problem myself run command render template.
After successful registration/login plugin will redirect to domain:4567/forum, instead on domain/forum for what ive created proxy pass.
So im using fb login on url domain/forum/login and after i used it i get redirected to domain:4567/forum.
Now when i disabled 4567 port in firewall i cant use plugin anymore.
Ive fixed by adding external url to node json config file and setting port attribute instead writing it in url