Error #1

{
    "errorId": "389wer07eghdd",
    "error": {
        "code": 500,
        "userData": {
            "request": {
                "method": "getblockhash",
                "parameters": [
                    null
                ]
            }
        }
    },
    "userData": {
        "errorMsg": "{\"result\":null,\"error\":{\"code\":-1,\"message\":\"JSON value is not an integer as expected\"},\"id\":\"355e2b80-04c5-4207-84c5-591ed3357044\"}\n"
    }
}

{
    "request": {
        "method": "getblockhash",
        "parameters": [
            null
        ]
    }
}

Stacktrace

Error: {"result":null,"error":{"code":-1,"message":"JSON value is not an integer as expected"},"id":"355e2b80-04c5-4207-84c5-591ed3357044"}

    at IncomingMessage.<anonymous> (/root/btc-rpc-explorer/node_modules/jayson/lib/client/http.js:78:23)
    at IncomingMessage.emit (node:events:519:35)
    at endReadableNT (node:internal/streams/readable:1701:12)
    at process.processTicksAndRejections (node:internal/process/task_queues:90:21)