Unknown option ‘serial’ for Zigbee2MQTT

Unfortunately, I have a problem. My supervisor is also full of errors:

2024-05-25 19:18:20.609 WARNING (MainThread) [supervisor.addons.options] Unknown option 'serial' for Zigbee2MQTT (45df7312_zigbee2mqtt)
2024-05-25 19:23:20.610 WARNING (MainThread) [supervisor.addons.options] Unknown option 'serial' for Zigbee2MQTT (45df7312_zigbee2mqtt)
2024-05-25 19:28:20.611 WARNING (MainThread) [supervisor.addons.options] Unknown option 'serial' for Zigbee2MQTT (45df7312_zigbee2mqtt)
2024-05-25 19:33:20.610 WARNING (MainThread) [supervisor.addons.options] Unknown option 'serial' for Zigbee2MQTT (45df7312_zigbee2mqtt)
2024-05-25 19:38:20.609 WARNING (MainThread) [supervisor.addons.options] Unknown option 'serial' for Zigbee2MQTT (45df7312_zigbee2mqtt)

What can I do to make the errors disappear. My Zibee router is connected via TCP.

  homeassistant_legacy_entity_attributes: false
  legacy_api: false
  legacy_availability_payload: false
  log_syslog:
    app_name: Zigbee2MQTT
    eol: /n
    host: localhost
    localhost: localhost
    path: /dev/log
    pid: process.pid
    port: 514
    protocol: udp4
    type: '5424'
  last_seen: ISO_8601_local
  log_level: error
mqtt:
  server: mqtt://core-mosquitto:1883
  user: addons
  password: xxxxx
  keepalive: 60
  reject_unauthorized: true
  version: 4
frontend:
  port: 8099
serial:
  port: tcp://192.168.178.9:53721
  baudrate: 115200
device_options:
  legacy: false