Matterbridge cannot read the homeassistant's mqtt_statestream topic

I am using HA OS on Proxmox and installed Matterbridge also as an LXC on Proxmox. After instaling the plugin “matterbridge-zigbee2mqtt” and configuring it with the default topic “zigbee2mqtt”, i was able to add my all Zigbee devices to Matter, and then could also add them to Alexa as Matter device. So far it was very straightforward and amazing.

BUT… when i configure matterbridge-zigbee2mqtt plugin to read from the exposed homeassistant topic, it fails everytime telling “The plugin did not receive zigbee2mqtt bridge state. Check if zigbee2mqtt is running and connected to the MQTT broker.”.
In a MQTT Explorer i can see that my HA really exposes the topic (with mqtt_statestream configuration). But still Matterbridge cannot reach that. Do you have any idea why?

Since Matterbridge does not have any problems with the default zigbee2mqtt topic. I think the problem is in mqtt_statestream integration somewhere, and althought i see the topic in mqtt explorer, it is maybe somehow in a wrong format…

This is my HA config file:
Bildschirmfoto 2024-12-06 um 23.16.38

This is how MQTT topics look like:

This is the error in Matterbridge: