Don't know why it's not working

[fr33s0ul]

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/ /_/ / __ \/ __ \/ __/ __ \/ __ \

/ / / / / // / // // / / / /
// // //_/_/_// /_/ v1.2.1

Traceback (most recent call last):
File "photon.py", line 266, in
zap(main_url, args.archive, domain, host, internal, robots)
File "/pentest/Photon/core/zap.py", line 23, in zap
response = requests.get(inputUrl + '/robots.txt').text
File "/usr/local/lib/python2.7/dist-packages/requests/api.py", line 72, in get
return request('get', url, params=params, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/requests/api.py", line 58, in request
return session.request(method=method, url=url, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/requests/sessions.py", line 508, in request
resp = self.send(prep, **send_kwargs)
File "/usr/local/lib/python2.7/dist-packages/requests/sessions.py", line 618, in send
r = adapter.send(request, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/requests/adapters.py", line 508, in send
raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPSConnectionPool(host='www.xxxxxxxxxxxxxx.com', port=443): Max retries exceeded with url: /robots.txt (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7f343a97aad0>: Failed to establish a new connection: [Errno -2] Name or service not known',))

[dataexfiltration]

Use python3 photon.py and it should work