Elasticsearch not loaded

[keco]

Dear all, I am newbie in docker/elasticsearch, just took over the project of my colleague,
but elasticsearch is not loading on a linux machine under the address http://172.23.65.11:9215/

I am starting docker with init.sh. The es_stack.yml you can see below as well.
Do you have an idea, where is the problem ?
If other logs are needed please tell me where can I find them.

Thank you very much

File init.sh

 #!/bin/bash
    #IFS=""

    export APPNAME="company"
    export KIBANA_PORT="5615"
    export ES_PORT="9215"
    export WEBSITE_PORT="8015"
    export FILENAME="es_stack.yml"
    export VERSION="6.3.2"
    export IP="172.23.65.11"

    docker-compose --verbose -f $FILENAME up -d

File es_stack.yml:

version: '3.6'
services:
  elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:${VERSION}
    volumes:
      - elasticsearch:/usr/share/elasticsearch/data
    ports:
      - ${ES_PORT}:9215
    networks:
      - network
  kibana:
    image: docker.elastic.co/kibana/kibana:${VERSION}
    volumes:
      - kibana:/usr/share/kibana/data
    ports:
      - ${KIBANA_PORT}:5615
    networks:
      - network
volumes:
  elasticsearch:
    driver: local
  kibana:
    driver: local
networks:
     network:
        attachable: true
        driver: bridge

Running init.sh:

https://pastebin.com/rBU9V9BG