Dropbox backup certificate error

Integration
1 
Traceback (most recent call last):
  File "/home/vhrs/frappe-bench/apps/frappe/frappe/app.py", line 55, in application
    response = frappe.handler.handle()
  File "/home/vhrs/frappe-bench/apps/frappe/frappe/handler.py", line 19, in handle
    execute_cmd(cmd)
  File "/home/vhrs/frappe-bench/apps/frappe/frappe/handler.py", line 36, in execute_cmd
    ret = frappe.call(method, **frappe.form_dict)
  File "/home/vhrs/frappe-bench/apps/frappe/frappe/__init__.py", line 882, in call
    return fn(*args, **newargs)
  File "/home/vhrs/frappe-bench/apps/frappe/frappe/integrations/doctype/dropbox_backup/dropbox_backup.py", line 80, in get_dropbox_authorize_url
    request_token = sess.obtain_request_token()
  File "/home/vhrs/frappe-bench/env/local/lib/python2.7/site-packages/dropbox/session.py", line 216, in obtain_request_token
    response = self.rest_client.POST(url, headers=headers, params=params, raw_response=True)
  File "/home/vhrs/frappe-bench/env/local/lib/python2.7/site-packages/dropbox/rest.py", line 322, in POST
    return cls.IMPL.POST(*n, **kw)
  File "/home/vhrs/frappe-bench/env/local/lib/python2.7/site-packages/dropbox/rest.py", line 260, in POST
    is_json_request=is_json_request)
  File "/home/vhrs/frappe-bench/env/local/lib/python2.7/site-packages/dropbox/rest.py", line 232, in request
    raise RESTSocketError(url, "SSL certificate error: %s" % e)
RESTSocketError: Error connecting to "https://api.dropbox.com/1/oauth/request_token": SSL certificate error: [Errno 1] _ssl.c:510: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed
2

I got same error…any solution?

3

for me is just a firewall problem try your firewall blocking