Issues with FCM integration and subscriber token updation

{
    "providerId": "fcm",
    "integrationIdentifier": "string",
    "credentials": {
        "channel": "general",
        "deviceTokens": [
            "ffz_token_value_p54Ts"
        ]
    }
}

{
    "error": "Bad Request",
    "statusCode": 400,
    "timestamp": "2025-12-23T11:37:51.490Z",
    "path": "/v1/subscribers/e1158e78-b5e5-4a96-a53c-d35fa69d7476/credentials",
    "message": "Subscribers environment (6943a1441a1c923a3f999a1e) do not have active fcm integration.",
    "ctx": {
        "error": "Bad Request",
        "statusCode": 400
    }
}