Newbie alert: Getting errors both in Webapp and Node-RED

[Mastiff]

I removed the Node-RED plug-in for SignalK, that was incompatible with the stand-alone Node-RED that I have on the Pi. Then I used the Signal K - MQTT Gateway, ran a local MQTT server/broker in that plug-in on the port 1884 and sendt info from Node-RED to SignalK to that server/broker. The most fiddly thing turned out to be that I had to set a fixed client ID in Node-RED, or SignalK would open a new path each time I restarted Node-RED.