HA not recognizing MQTT topic

Hya,

my HA is working and MQTT integration active.

I built a ESPEasy sensor, and it’s publishing it’s status to MQTT broker.

By HA config, i included it, but it’s not working.

Any hint, please?

configuration.yaml snipplet:

mysensors:
  gateways:
    - device: '192.168.80.9'
      tcp_port: 5003
      persistence_file: '/var/homeassistant/.homeassistant/mysensors-1.json'
#   - device: '192.168.80.19'
#     tcp_port: 5003
#     persistence_file: '/var/homeassistant/.homeassistant/mysensors-2.json'
#

sensor:
  - platform: mqtt
    name: "TC91100"
    state_topic: "kitchen/BS-TC91100/VACC/status"
    availability:
    - topic: "kitchen/BS-TC91100/status/LWT"
    payload_available: "Connected"
    payload_not_available: "offline"