Zigee error messages after restart

Hi there,

I have the following two error messages in the logs after restarting.
I would be happy if someone can help me to eliminate this:

  Logger: zigpy.zcl
Source: /usr/local/lib/python3.9/site-packages/zigpy/zcl/__init__.py:92
First occurred: 09:33:25 (9 occurrences)
Last logged: 09:33:26

    Unknown cluster 57346
    Unknown cluster 57344
    Unknown cluster 57345

Logger: homeassistant.components.webhook
Source: components/webhook/__init__.py:94
Integration: Webhook (documentation, issues)
First occurred: 09:33:22 (1 occurrences)
Last logged: 09:33:22

Received message for unregistered webhook a04344e625f7ddd52e627ba0ff4024252d6bb988cb from ist my Tablet.

Greetings Werner

I have same Unknown cluster 57346 error. Did you solve this error yet?

My guess: a Zigbee device that is not fully recognized, or not correctly paired.