Neuhaus Lightning Group Q-Smart Home Lamps - Not working

I bought a couple of “Smart-Home Lights” from the Neuhaus Lighting Group. All are said to be Zigbee Compatible.
However after pairing them with my HA installation (ZHA + Sonoff ZHABridge, flashed with Tasmota, Version 12.2.0.2) I am not able to control the lights.

Zigbee info

IEEE: 90:94:03:00:e0:0b:fd:b0
Nwk: 0xc74d
Device Type: Router
LQI: 132
RSSI: -67
Zuletzt gesehen: 2022-11-06T01:02:02
Energiequelle: Mains


The screenshot from the Zigbee network shows the device “Stehlampe” but it is not connected to anything.

I do see some messages in the logs:

Logger: homeassistant.components.zha.core.channels.base
Source: components/zha/core/channels/base.py:486
Integration: Zigbee Home Automation (documentation, issues)
First occurred: 00:42:10 (13 occurrences)
Last logged: 00:42:17

[0xC74D:1:0x0006]: async_initialize: all attempts have failed: [DeliveryError('Failed to deliver message: <EmberStatus.DELIVERY_FAILED: 102>'), DeliveryError('Failed to deliver message: <EmberStatus.DELIVERY_FAILED: 102>'), DeliveryError('Failed to deliver message: <EmberStatus.DELIVERY_FAILED: 102>'), DeliveryError('Failed to deliver message: <EmberStatus.DELIVERY_FAILED: 102>')]
[0xC7F7:1:0x0008]: async_initialize: all attempts have failed: [DeliveryError('Failed to deliver message: <EmberStatus.DELIVERY_FAILED: 102>'), DeliveryError('Failed to deliver message: <EmberStatus.DELIVERY_FAILED: 102>'), DeliveryError('Failed to deliver message: <EmberStatus.DELIVERY_FAILED: 102>'), DeliveryError('Failed to deliver message: <EmberStatus.DELIVERY_FAILED: 102>')]

...

Anyone have an idea whats going on here?