Can't start certbot

Hello!
Sorry for my bad English!

I have got ssl certificate, but i want remove this.
I want open certbot (./certbot-auto)
But, the certbot can’t start

Log:

^CTraceback (most recent call last):
File “/tmp/tmp.wJRy0J7U1P/fetch.py”, line 148, in
exit(main())
File “/tmp/tmp.wJRy0J7U1P/fetch.py”, line 136, in main
print(latest_stable_version(get))
File “/tmp/tmp.wJRy0J7U1P/fetch.py”, line 85, in latest_stable_version
https://pypi.python.org/pypi/certbot/json’)).decode('UTF-8’))
File “/tmp/tmp.wJRy0J7U1P/fetch.py”, line 70, in get
return self._opener.open(url, timeout=30).read()
File “/usr/lib/python2.7/urllib2.py”, line 431, in open
response = self._open(req, data)
File “/usr/lib/python2.7/urllib2.py”, line 449, in _open
‘_open’, req)
File “/usr/lib/python2.7/urllib2.py”, line 409, in _call_chain
result = func(*args)
File “/usr/lib/python2.7/urllib2.py”, line 1240, in https_open
context=self._context)
File “/usr/lib/python2.7/urllib2.py”, line 1194, in do_open
h.request(req.get_method(), req.get_selector(), req.data, headers)
File “/usr/lib/python2.7/httplib.py”, line 1055, in request
self._send_request(method, url, body, headers)
File “/usr/lib/python2.7/httplib.py”, line 1089, in _send_request
self.endheaders(body)
File “/usr/lib/python2.7/httplib.py”, line 1051, in endheaders
self._send_output(message_body)
File “/usr/lib/python2.7/httplib.py”, line 889, in _send_output
self.send(msg)
File “/usr/lib/python2.7/httplib.py”, line 851, in send
self.connect()
File “/usr/lib/python2.7/httplib.py”, line 1258, in connect
HTTPConnection.connect(self)
File “/usr/lib/python2.7/httplib.py”, line 832, in connect
self.timeout, self.source_address)
File “/usr/lib/python2.7/socket.py”, line 562, in create_connection
sock.connect(sa)
File “/usr/lib/python2.7/socket.py”, line 224, in meth
return getattr(self._sock,name)(*args)
KeyboardInterrupt

I use Debian 8.0
Kernel: 3.16.0-10-amd64

Is the system up to date?:
https://debian-handbook.info/browse/stable/sect.regular-upgrades.html