Raspbee - RaspberryPi 4

Hello everybody,
I recently got a Raspbee for my home assistant but I can’t connect any device.

At the beginning I had some problems to add configuration on config.txt but then I found a way with “import from USB” but I don’t know how to verify it.

From deConz console I see my gateway but not connected

and via VNC it’s impossible to connect to it.

When starting the add on I get these msg’s in the log:

libEGL warning: DRI2: failed to open swrast (search paths /usr/lib/arm-linux-gnueabihf/dri:${ORIGIN}/dri:/usr/lib/dri)

and

libpng warning: iCCP: known incorrect sRGB profile

And also:

13:06:12:159 COM: /dev/ttyAMA0 / serialno:
13:06:12:159 COM: --dev: /dev/ttyAMA0 (RaspBee)
13:06:12:646 device state timeout ignored in state 2
13:06:13:157 dev /dev/ttyAMA0
13:06:13:633 device state timeout ignored in state 2
13:06:14:620 device state timeout ignored in state 2
13:06:15:620 device state timeout ignored in state 2
13:06:16:120 try to reconnect to network try=3
13:06:17:620 device state timeout ignored in state 2
13:06:18:620 device state timeout (handled)
13:06:18:629 device disconnected reason: 1, index: 0
13:06:19:120 wait reconnect 15 seconds

it seems serialno is missing. Hardware failure?

Can someone help me?!

Thanks,
Milko