The reason why you get
Failed to connect to 192.168.1.12 port 8080: Connection refused is because there’s no server running at that address.
In order to be able to video stream, you need a server to bind to a certain
IP address and
Why I cannot access to USB camera that connects to my GoPiGo via USB?
That entirely depends on what setup you have there.
I haven’t worked with
motionEye, but judging from the message you got on your interface, you need to setup a so-called
Remote motionEye client.
That client will then have to connect to the
motionEye server by using the given interface.
Hope this helps you a little bit!