Nuitrack Kinect v2 - license error

I have this error in Unity:

I can use SDK with one device? Now im use Kinect v2.
It worked for a while, but then there was a this error.

I download Nuitrack example Assets for Unity 3D, but i have this error.
My license not work for this software?

I find problem. Then i use TouchDesigner Kinect Color Cam, i have problem with license. Why?

Thank you!

Hey,

Once you activate a license it gets bounded to the sensor you were using when activating. If you switch sensors you need to get another license for the new sensor.

You can still use pro with the first sensor. But you need another license for the second sensor.

This error you are getting is because the trial time ended because you haven’t activated the nuitrack license for your kinect v2;