Error #1

{
    "errorId": "389wer07eghdd",
    "error": {
        "userData": {
            "request": {
                "method": "getblockhash",
                "parameters": [
                    null
                ]
            }
        }
    },
    "userData": {
        "errorMsg": "RpcError: type=errorResponse-03"
    }
}

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

Stacktrace

Error: RpcError: type=errorResponse-03
    at Object.rpcCall (/usr/lib/node_modules/btc-rpc-explorer/app/api/rpcApi.js:519:13)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)