Elastic Beanstack

Hi team, I am trying to setup ElasticBeanstack and with setup I am getting Health status as Severe.

Instance - i-07582fa27c20ef43b	
Severe - 
Process default has been unhealthy for 26 minutes (Target.FailedHealthChecks).
Instance has not sent any data since launch.

And when we are checking logs, and found below issues:

{
    "id": "44c7721b-7bdf-4cdf-bdc7-6f443cde4564",
    "version": "1.0",
    "type": "HealthTransition",
    "color": "Red",
    "timestamp": "2024-02-13T18:09:09Z",
    "status": "Severe",
    "causes": [
        "ELB processes are not healthy on all instances.",
        "Initialization in progress (running for 11 minutes).",
        "None of the instances are sending data.",
        "ELB health is failing or not available for all instances."
    ]
}

{
    "id": "f733042f-1c2d-438c-a088-697e6121196c",
    "version": "1.0",
    "type": "HealthTransition",
    "color": "Red",
    "timestamp": "2024-02-13T18:19:33Z",
    "status": "Severe",
    "causes": [
        "ELB processes are not healthy on all instances.",
        "Initialization in progress (running for 21 minutes).",
        "None of the instances are sending data.",
        "50.0 % of the requests to the ELB are failing with HTTP 5xx. Insufficient request rate (1.0 requests/min) to determine application health (5 minutes ago).",
        "ELB health is failing or not available for all instances."
    ]
}

And when we check Traffic Health Settings:

Please suggest, what mistake we are doing.