iisnode encountered an error when processing the request.

HRESULT: 0x6d
HTTP status: 500
HTTP subStatus: 1013
HTTP reason: Internal Server Error

You are receiving this HTTP 200 response because system.webServer/iisnode/@devErrorsEnabled configuration setting is 'true'.

In addition to the log of stdout and stderr of the node.exe process, consider using debugging and ETW traces to further diagnose the problem.

The last 64k of the output generated by the node.exe process to stderr is shown below:

(node:11336) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.
(Use `node --trace-deprecation ...` to show where the warning was created)
Fetch Error: Error: Request failed with status code 503
    at createError (C:\inetpub\wwwroot\MayflowerPortal\node_modules\axios\lib\core\createError.js:16:15)
    at settle (C:\inetpub\wwwroot\MayflowerPortal\node_modules\axios\lib\core\settle.js:17:12)
    at IncomingMessage.handleStreamEnd (C:\inetpub\wwwroot\MayflowerPortal\node_modules\axios\lib\adapters\http.js:269:11)
    at IncomingMessage.emit (node:events:402:35)
    at endReadableNT (node:internal/streams/readable:1343:12)
    at processTicksAndRejections (node:internal/process/task_queues:83:21) {
  config: {
    url: 'http://localhost:\\\\.\\pipe\\0f8ec39c-6bd3-4392-bf8b-18f8eb5be547/realtimeroute/realtimeroute.json',
    method: 'get',
    headers: {
      Accept: 'application/json, text/plain, */*',
      'User-Agent': 'axios/0.21.4'
    },
    transformRequest: [ [Function: transformRequest] ],
    transformResponse: [ [Function: transformResponse] ],
    timeout: 0,
    adapter: [Function: httpAdapter],
    xsrfCookieName: 'XSRF-TOKEN',
    xsrfHeaderName: 'X-XSRF-TOKEN',
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    validateStatus: [Function: validateStatus],
    transitional: {
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      forcedJSONParsing: true,
      clarifyTimeoutError: false
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    data: undefined
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  request: <ref *1> ClientRequest {
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      connect: [Function (anonymous)],
      error: [Function (anonymous)],
      socket: [Function (anonymous)],
      timeout: [Function (anonymous)],
      prefinish: [Function: requestOnPrefinish]
    },
    _eventsCount: 7,
    _maxListeners: undefined,
    outputData: [],
    outputSize: 0,
    writable: true,
    destroyed: false,
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    chunkedEncoding: false,
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    maxRequestsOnConnectionReached: false,
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    sendDate: false,
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    _contentLength: 0,
    _hasBody: true,
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    finished: true,
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    socket: Socket {
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      _host: 'localhost',
      _readableState: [ReadableState],
      _events: [Object: null prototype],
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      _maxListeners: undefined,
      _writableState: [WritableState],
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      _sockname: null,
      _pendingData: null,
      _pendingEncoding: '',
      server: null,
      _server: null,
      parser: null,
      _httpMessage: [Circular *1],
      [Symbol(async_id_symbol)]: 196389,
      [Symbol(kHandle)]: [TCP],
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      [Symbol(timeout)]: null,
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      [Symbol(RequestTimeout)]: undefined
    },
    _header: 'GET //./pipe/0f8ec39c-6bd3-4392-bf8b-18f8eb5be547/realtimeroute/realtimeroute.json HTTP/1.1\r\n' +
      'Accept: application/json, text/plain, */*\r\n' +
      'User-Agent: axios/0.21.4\r\n' +
      'Host: localhost\r\n' +
      'Connection: close\r\n' +
      '\r\n',
    _keepAliveTimeout: 0,
    _onPendingData: [Function: nop],
    agent: Agent {
      _events: [Object: null prototype],
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      _maxListeners: undefined,
      defaultPort: 80,
      protocol: 'http:',
      options: [Object: null prototype],
      requests: [Object: null prototype] {},
      sockets: [Object: null prototype],
      freeSockets: [Object: null prototype] {},
      keepAliveMsecs: 1000,
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      maxSockets: Infinity,
      maxFreeSockets: 256,
      scheduling: 'lifo',
      maxTotalSockets: Infinity,
      totalSocketCount: 1,
      [Symbol(kCapture)]: false
    },
    socketPath: undefined,
    method: 'GET',
    maxHeaderSize: undefined,
    insecureHTTPParser: undefined,
    path: '//./pipe/0f8ec39c-6bd3-4392-bf8b-18f8eb5be547/realtimeroute/realtimeroute.json',
    _ended: true,
    res: IncomingMessage {
      _readableState: [ReadableState],
      _events: [Object: null prototype],
      _eventsCount: 3,
      _maxListeners: undefined,
      socket: [Socket],
      httpVersionMajor: 1,
      httpVersionMinor: 1,
      httpVersion: '1.1',
      complete: true,
      rawHeaders: [Array],
      rawTrailers: [],
      aborted: false,
      upgrade: false,
      url: '',
      method: null,
      statusCode: 503,
      statusMessage: 'Service Unavailable',
      client: [Socket],
      _consuming: false,
      _dumped: false,
      req: [Circular *1],
      responseUrl: 'http://localhost//./pipe/0f8ec39c-6bd3-4392-bf8b-18f8eb5be547/realtimeroute/realtimeroute.json',
      redirects: [],
      [Symbol(kCapture)]: false,
      [Symbol(kHeaders)]: [Object],
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    },
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    parser: null,
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    host: 'localhost',
    protocol: 'http:',
    _redirectable: Writable {
      _writableState: [WritableState],
      _events: [Object: null prototype],
      _eventsCount: 2,
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      _options: [Object],
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      _ending: true,
      _redirectCount: 0,
      _redirects: [],
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      _requestBodyBuffers: [],
      _onNativeResponse: [Function (anonymous)],
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    [Symbol(kOutHeaders)]: [Object: null prototype] {
      accept: [Array],
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      host: [Array]
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  },
  response: {
    status: 503,
    statusText: 'Service Unavailable',
    headers: {
      'content-type': 'text/html; charset=us-ascii',
      server: 'Microsoft-HTTPAPI/2.0',
      date: 'Thu, 19 Mar 2026 08:57:35 GMT',
      connection: 'close',
      'content-length': '326'
    },
    config: {
      url: 'http://localhost:\\\\.\\pipe\\0f8ec39c-6bd3-4392-bf8b-18f8eb5be547/realtimeroute/realtimeroute.json',
      method: 'get',
      headers: [Object],
      transformRequest: [Array],
      transformResponse: [Array],
      timeout: 0,
      adapter: [Function: httpAdapter],
      xsrfCookieName: 'XSRF-TOKEN',
      xsrfHeaderName: 'X-XSRF-TOKEN',
      maxContentLength: -1,
      maxBodyLength: -1,
      validateStatus: [Function: validateStatus],
      transitional: [Object],
      data: undefined
    },
    request: <ref *1> ClientRequest {
      _events: [Object: null prototype],
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      _maxListeners: undefined,
      outputData: [],
      outputSize: 0,
      writable: true,
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      chunkedEncoding: false,
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      maxRequestsOnConnectionReached: false,
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      _contentLength: 0,
      _hasBody: true,
      _trailer: '',
      finished: true,
      _headerSent: true,
      _closed: false,
      socket: [Socket],
      _header: 'GET //./pipe/0f8ec39c-6bd3-4392-bf8b-18f8eb5be547/realtimeroute/realtimeroute.json HTTP/1.1\r\n' +
        'Accept: application/json, text/plain, */*\r\n' +
        'User-Agent: axios/0.21.4\r\n' +
        'Host: localhost\r\n' +
        'Connection: close\r\n' +
        '\r\n',
      _keepAliveTimeout: 0,
      _onPendingData: [Function: nop],
      agent: [Agent],
      socketPath: undefined,
      method: 'GET',
      maxHeaderSize: undefined,
      insecureHTTPParser: undefined,
      path: '//./pipe/0f8ec39c-6bd3-4392-bf8b-18f8eb5be547/realtimeroute/realtimeroute.json',
      _ended: true,
      res: [IncomingMessage],
      aborted: false,
      timeoutCb: null,
      upgradeOrConnect: false,
      parser: null,
      maxHeadersCount: null,
      reusedSocket: false,
      host: 'localhost',
      protocol: 'http:',
      _redirectable: [Writable],
      [Symbol(kCapture)]: false,
      [Symbol(kNeedDrain)]: false,
      [Symbol(corked)]: 0,
      [Symbol(kOutHeaders)]: [Object: null prototype]
    },
    data: '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN""http://www.w3.org/TR/html4/strict.dtd">\r\n' +
      '<HTML><HEAD><TITLE>Service Unavailable</TITLE>\r\n' +
      '<META HTTP-EQUIV="Content-Type" Content="text/html; charset=us-ascii"></HEAD>\r\n' +
      '<BODY><h2>Service Unavailable</h2>\r\n' +
      '<hr><p>HTTP Error 503. The service is unavailable.</p>\r\n' +
      '</BODY></HTML>\r\n'
  },
  isAxiosError: true,
  toJSON: [Function: toJSON]
}
Cannot stringify a function 
Cannot stringify a function