I have installed Node Red on a rp3 with openhab2.2.0 stable.
First problem: The installation via Openhabian-config only starts when is installed as root - is that right?
My thoughts are to integrate some items like my windows contacts - what finally worked.
But now…after some restarts my node red hung up somehow.
Tried to uninstall and reinstall … no chance.
This is the window of the browser now…it worked before 
Welcome to Node-RED
===================
18 Feb 18:04:40 - [info] Node-RED version: v0.18.3
18 Feb 18:04:40 - [info] Node.js version: v6.13.0
18 Feb 18:04:40 - [info] Linux 4.9.35-v7+ arm LE
18 Feb 18:04:41 - [info] Loading palette nodes
*** WARNING *** The program 'node' uses the Apple Bonjour compatibility layer of Avahi.
*** WARNING *** The program 'node' uses the Apple Bonjour compatibility layer of Avahi.
*** WARNING *** Please fix your application to use the native API of Avahi!
*** WARNING *** Please fix your application to use the native API of Avahi!
*** WARNING *** For more information see <http://0pointer.de/avahi-compat?s=libdns_sd&e=node>
*** WARNING *** For more information see <http://0pointer.de/avahi-compat?s=libdns_sd&e=node>
*** WARNING *** The program 'node' called 'DNSServiceRegister()' which is not supported (or only supported partially) in the Apple Bonjour compatibility layer of Avahi.
*** WARNING *** The program 'node' called 'DNSServiceRegister()' which is not supported (or only supported partially) in the Apple Bonjour compatibility layer of Avahi.
*** WARNING *** Please fix your application to use the native API of Avahi!
*** WARNING *** Please fix your application to use the native API of Avahi!
*** WARNING *** For more information see <http://0pointer.de/avahi-compat?s=libdns_sd&e=node&f=DNSServiceRegister>
*** WARNING *** For more information see <http://0pointer.de/avahi-compat?s=libdns_sd&e=node&f=DNSServiceRegister>
18 Feb 18:04:51 - [info] Settings file : /root/.node-red/settings.js
18 Feb 18:04:51 - [info] User directory : /root/.node-red
18 Feb 18:04:51 - [warn] Projects disabled : set editorTheme.projects.enabled=true to enable
18 Feb 18:04:51 - [info] Flows file : /root/.node-red/flows_openHABianPi.json
18 Feb 18:04:51 - [info] Creating new flow file
18 Feb 18:04:51 - [info] Server now running at http://127.0.0.1:1880/
18 Feb 18:04:51 - [info] Starting flows
18 Feb 18:04:51 - [info] Started flows
Any suggestions?