error Error: connect ECONNREFUSED 127.0.0.1:8000 when running with ChromaDB

[angel1st]

I have both parts running application and ChromaDB container.
This is the error I have:

yarn run v1.22.19
$ tsx -r dotenv/config scripts/ingest-data.ts
(node:122) ExperimentalWarning: `--experimental-loader` may be removed in the future; instead use `register()`:
--import 'data:text/javascript,import { register } from "node:module"; import { pathToFileURL } from "node:url"; register("file%3A///usr/src/app/node_modules/tsx/dist/loader.js", pathToFileURL("./"));'
(Use `node --trace-warnings ...` to show where the warning was created)
[WARN] Importing from 'langchain/document_loaders' is deprecated. Import from eg. 'langchain/document_loaders/fs/text' or 'langchain/document_loaders/web/cheerio' instead. See https://js.langchain.com/docs/getting-started/install#updating-from-0052 for upgrade instructions.
creating vector store...
error Error: connect ECONNREFUSED 127.0.0.1:8000
    at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1605:16) {
  errno: -111,
  code: 'ECONNREFUSED',
  syscall: 'connect',
  address: '127.0.0.1',
  port: 8000,
  config: {
    transitional: {
      silentJSONParsing: true,
      forcedJSONParsing: true,
      clarifyTimeoutError: false
    },
    adapter: [Function: httpAdapter],
    transformRequest: [ [Function: transformRequest] ],
    transformResponse: [ [Function: transformResponse] ],
    timeout: 0,
    xsrfCookieName: 'XSRF-TOKEN',
    xsrfHeaderName: 'X-XSRF-TOKEN',
    maxContentLength: -1,
    maxBodyLength: -1,
    validateStatus: [Function: validateStatus],
    headers: {
      Accept: 'application/json, text/plain, */*',
      'User-Agent': 'axios/0.26.1'
    },
    method: 'get',
    url: 'http://localhost:8000/api/v1/collections/database/count',
    data: undefined
  },
  request: <ref *1> Writable {
    _events: {
      close: undefined,
      error: [Function: handleRequestError],
      prefinish: undefined,
      finish: undefined,
      drain: undefined,
      response: [Function: handleResponse],
      socket: [Function: handleRequestSocket]
    },
    _writableState: WritableState {
      highWaterMark: 16384,
      length: 0,
      corked: 0,
      onwrite: [Function: bound onwrite],
      writelen: 0,
      bufferedIndex: 0,
      pendingcb: 0,
      [Symbol(kState)]: 17580812,
      [Symbol(kBufferedValue)]: null
    },
    _maxListeners: undefined,
    _options: {
      maxRedirects: 21,
      maxBodyLength: 10485760,
      protocol: 'http:',
      path: '/api/v1/collections/database/count',
      method: 'GET',
      headers: [Object],
      agent: undefined,
      agents: [Object],
      auth: undefined,
      hostname: 'localhost',
      port: '8000',
      nativeProtocols: [Object],
      pathname: '/api/v1/collections/database/count'
    },
    _ended: true,
    _ending: true,
    _redirectCount: 0,
    _redirects: [],
    _requestBodyLength: 0,
    _requestBodyBuffers: [],
    _eventsCount: 3,
    _onNativeResponse: [Function (anonymous)],
    _currentRequest: ClientRequest {
      _events: [Object: null prototype],
      _eventsCount: 7,
      _maxListeners: undefined,
      outputData: [],
      outputSize: 0,
      writable: true,
      destroyed: false,
      _last: true,
      chunkedEncoding: false,
      shouldKeepAlive: true,
      maxRequestsOnConnectionReached: false,
      _defaultKeepAlive: true,
      useChunkedEncodingByDefault: false,
      sendDate: false,
      _removedConnection: false,
      _removedContLen: false,
      _removedTE: false,
      strictContentLength: false,
      _contentLength: 0,
      _hasBody: true,
      _trailer: '',
      finished: true,
      _headerSent: true,
      _closed: false,
      _header: 'GET /api/v1/collections/database/count HTTP/1.1\r\n' +
        'Accept: application/json, text/plain, */*\r\n' +
        'User-Agent: axios/0.26.1\r\n' +
        'Host: localhost:8000\r\n' +
        'Connection: keep-alive\r\n' +
        '\r\n',
      _keepAliveTimeout: 0,
      _onPendingData: [Function: nop],
      agent: [Agent],
      socketPath: undefined,
      method: 'GET',
      maxHeaderSize: undefined,
      insecureHTTPParser: undefined,
      joinDuplicateHeaders: undefined,
      path: '/api/v1/collections/database/count',
      _ended: false,
      res: null,
      aborted: false,
      timeoutCb: [Function: emitRequestTimeout],
      upgradeOrConnect: false,
      parser: null,
      maxHeadersCount: null,
      reusedSocket: false,
      host: 'localhost',
      protocol: 'http:',
      _redirectable: [Circular *1],
      [Symbol(shapeMode)]: false,
      [Symbol(kCapture)]: false,
      [Symbol(kBytesWritten)]: 0,
      [Symbol(kNeedDrain)]: false,
      [Symbol(corked)]: 0,
      [Symbol(kChunkedBuffer)]: [],
      [Symbol(kChunkedLength)]: 0,
      [Symbol(kSocket)]: [Socket],
      [Symbol(kOutHeaders)]: [Object: null prototype],
      [Symbol(errored)]: null,
      [Symbol(kHighWaterMark)]: 16384,
      [Symbol(kRejectNonStandardBodyWrites)]: false,
      [Symbol(kUniqueHeaders)]: null
    },
    _currentUrl: 'http://localhost:8000/api/v1/collections/database/count',
    [Symbol(shapeMode)]: true,
    [Symbol(kCapture)]: false
  },
  response: undefined,
  isAxiosError: true,
  toJSON: [Function: toJSON]
}
Error: Failed to ingest your data
    at run (file:///usr/src/app/scripts/ingest-data.ts:1:953)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at file:///usr/src/app/scripts/ingest-data.ts:1:1013
error Command failed with exit code 1.

It seems like the app cannot connect to the DB, although the ports are the ones stated in the Readme file.
Please help. Thanks!