I dont know really.
Here is my startup:
pi@raspberrypi:~ $ node-red-start
Start Node-RED
On Pi Node-RED works better with the Firefox or Chrome browser
Use node-red-stop to stop Node-RED
Use node-red-start to start Node-RED again
Use node-red-log to view the recent log output
Use sudo systemctl enable nodered.service to autostart Node-RED at every boot
Use sudo systemctl disable nodered.service to disable autostart on boot
Starting as a systemd service.
Started Node-RED graphical event wiring tool..
27 Oct 17:23:33 - [info]
Welcome to Node-RED
===================
27 Oct 17:23:33 - [info] Node-RED version: v0.17.5
27 Oct 17:23:33 - [info] Node.js version: v6.11.5
27 Oct 17:23:33 - [info] Linux 4.9.41-v7+ arm LE
27 Oct 17:23:34 - [info] Loading palette nodes
27 Oct 17:23:38 - [info] Dashboard version 2.6.0 started at /ui
27 Oct 17:23:40 - [info] Settings file : /home/pi/.node-red/settings.js
27 Oct 17:23:40 - [info] User directory : /home/pi/.node-red
27 Oct 17:23:40 - [info] Flows file : /home/pi/.node-red/flows_raspberrypi.json
27 Oct 17:23:40 - [info] Starting flows
27 Oct 17:23:40 - [error] [pushover:166e0f77.f5f391] No Pushover api token set
27 Oct 17:23:40 - [error] [pushover:166e0f77.f5f391] No Pushover user key set
27 Oct 17:23:40 - [info] Started flows