Error #1

{
    "errorId": "1237y4ewssgt",
    "error": {
        "userData": {
            "error": {
                "cause": {
                    "errno": -111,
                    "code": "ECONNREFUSED",
                    "syscall": "connect",
                    "address": "172.21.0.3",
                    "port": 18332
                },
                "isOperational": true,
                "errno": -111,
                "code": "ECONNREFUSED",
                "syscall": "connect",
                "address": "172.21.0.3",
                "port": 18332
            },
            "request": {
                "method": "getrawtransaction",
                "parameters": [
                    "433f69f8fe662d9d98533fc67c7617fb9171e7aa9a03f868856e9739187d8dd4",
                    1
                ]
            }
        }
    }
}

{
    "error": {
        "cause": {
            "errno": -111,
            "code": "ECONNREFUSED",
            "syscall": "connect",
            "address": "172.21.0.3",
            "port": 18332
        },
        "isOperational": true,
        "errno": -111,
        "code": "ECONNREFUSED",
        "syscall": "connect",
        "address": "172.21.0.3",
        "port": 18332
    },
    "request": {
        "method": "getrawtransaction",
        "parameters": [
            "433f69f8fe662d9d98533fc67c7617fb9171e7aa9a03f868856e9739187d8dd4",
            1
        ]
    }
}

Stacktrace

Error: RpcError: type=failure-02
    at Client.<anonymous> (/block-explorer/app/api/rpcApi.js:360:13)
    at Client.tryCatcher (/block-explorer/node_modules/bluebird/js/release/util.js:16:23)
    at Promise.errorAdapter (/block-explorer/node_modules/bluebird/js/release/nodeify.js:35:34)
    at Promise._settlePromise (/block-explorer/node_modules/bluebird/js/release/promise.js:601:21)
    at Promise._settlePromise0 (/block-explorer/node_modules/bluebird/js/release/promise.js:649:10)
    at Promise._settlePromises (/block-explorer/node_modules/bluebird/js/release/promise.js:725:18)