Cannot run with cooperate proxy

[vtdat]

newsreader-cli on  master via newsreader-cli 
➜ python3 -m newsreadercli main
Traceback (most recent call last):
  File "/home/vutuandat/Documents/github/newsreader-cli/env/lib/python3.8/site-packages/urllib3/connectionpool.py", line 696, in urlopen
    self._prepare_proxy(conn)
  File "/home/vutuandat/Documents/github/newsreader-cli/env/lib/python3.8/site-packages/urllib3/connectionpool.py", line 964, in _prepare_proxy
    conn.connect()
  File "/home/vutuandat/Documents/github/newsreader-cli/env/lib/python3.8/site-packages/urllib3/connection.py", line 411, in connect
    self.sock = ssl_wrap_socket(
  File "/home/vutuandat/Documents/github/newsreader-cli/env/lib/python3.8/site-packages/urllib3/util/ssl_.py", line 449, in ssl_wrap_socket
    ssl_sock = _ssl_wrap_socket_impl(
  File "/home/vutuandat/Documents/github/newsreader-cli/env/lib/python3.8/site-packages/urllib3/util/ssl_.py", line 493, in _ssl_wrap_socket_impl
    return ssl_context.wrap_socket(sock, server_hostname=server_hostname)
  File "/usr/lib/python3.8/ssl.py", line 500, in wrap_socket
    return self.sslsocket_class._create(
  File "/usr/lib/python3.8/ssl.py", line 1040, in _create
    self.do_handshake()
  File "/usr/lib/python3.8/ssl.py", line 1309, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (_ssl.c:1131)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/vutuandat/Documents/github/newsreader-cli/env/lib/python3.8/site-packages/requests/adapters.py", line 439, in send
    resp = conn.urlopen(
  File "/home/vutuandat/Documents/github/newsreader-cli/env/lib/python3.8/site-packages/urllib3/connectionpool.py", line 755, in urlopen
    retries = retries.increment(
  File "/home/vutuandat/Documents/github/newsreader-cli/env/lib/python3.8/site-packages/urllib3/util/retry.py", line 574, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='vnexpress.net', port=443): Max retries exceeded with url: / (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (_ssl.c:1131)')))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3.8/runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/usr/lib/python3.8/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/home/vutuandat/Documents/github/newsreader-cli/newsreadercli/__main__.py", line 10, in <module>
    news_scrapper.default()
  File "/home/vutuandat/Documents/github/newsreader-cli/newsreadercli/scraper.py", line 39, in default
    self.page_scrape()                                  # Default values
  File "/home/vutuandat/Documents/github/newsreader-cli/newsreadercli/scraper.py", line 63, in page_scrape
    soup = self.make_soup(url, page)
  File "/home/vutuandat/Documents/github/newsreader-cli/newsreadercli/scraper.py", line 49, in make_soup
    page = requests.get(constants.BASE_URL if (url is None) else url).text
  File "/home/vutuandat/Documents/github/newsreader-cli/env/lib/python3.8/site-packages/requests/api.py", line 75, in get
    return request('get', url, params=params, **kwargs)
  File "/home/vutuandat/Documents/github/newsreader-cli/env/lib/python3.8/site-packages/requests/api.py", line 61, in request
    return session.request(method=method, url=url, **kwargs)
  File "/home/vutuandat/Documents/github/newsreader-cli/env/lib/python3.8/site-packages/requests/sessions.py", line 542, in request
    resp = self.send(prep, **send_kwargs)
  File "/home/vutuandat/Documents/github/newsreader-cli/env/lib/python3.8/site-packages/requests/sessions.py", line 655, in send
    r = adapter.send(request, **kwargs)
  File "/home/vutuandat/Documents/github/newsreader-cli/env/lib/python3.8/site-packages/requests/adapters.py", line 514, in send
    raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='vnexpress.net', port=443): Max retries exceeded with url: / (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (_ssl.c:1131)')))