Android app don`t see local docker server

General Docker
1

I run docker container with bridge network on raspberry pi 4.
My android tv plex app write “server not available”.
But it accessible from web browser in local network by address http://plexhost:32400.

docker-compose.yml

plex:
    image: lscr.io/linuxserver/plex:latest
    container_name: plex
    networks:
      - plex
    privileged: true
    depends_on:
      openhab:
        condition: service_healthy
    restart: always
    ports:
      - "32400:32400"
      - "1900:1900"
      - "5353:5353"
      - "8324:8324"
      - "32410:32410"
      - "32412:32412"
      - "32413:32413"
      - "32414:32414"
      - "32469:32469"
    environment:
      PUID: 1003
      PGID: 1004
      VERSION: docker
      ADVERTISE_IP: 'http://192.168.200.9:32400'
      HOSTNAME: plexhost
      PLEX_CLAIM: 'claim...'
    volumes:
      - /opt/conts/plex/config:/config
      - /opt/conts/plex/tv:/tv
      - /opt/conts/plex/movies:/movies
networks:
  plex:
    driver: bridge
    enable_ipv6: false

what do i do wrong?