Hi, i am a bit further.
I installed the Domoticz package and indeed during installation it is possible to choose the port.
So i did, and put in 8084 as port.
After the install i opend domoticz.sh and changed the port value there from 8080 to 8084.
But when i go to the domoticz webpage it is still ...

this is what i see in the terminal,

Homebridge is running on port 51826.
[eDomoticz] There was a problem connecting to Domoticz.
- Error: connect ECONNREFUSED 127.0.0.1:8080
[Config] Using Form Authentication
[Config] Console v3.8.9 is listening on port 8080.

Hi Edwin and Hans,
the problem is that both plugin uses the same port in the config,json, but if i change the port to 8084 for edomoticz i get the connectionrefused error for port 8084
here is my config.json
{
"bridge": {
"name": "Homebridge",
"username": "CC:22:3D:E3:CE:30",
"port": 51826 ...

I have a raspberry pi and run Homebridge on it with plugin config-ui-x that is listen on port 8080.
Now i wanted to install the plugin eDomoticz but that is also listen on port 8080 so i get error connection refused.
I have tried to change the port value in the json file to 8084 but get the same ...