Newbie: How to backup?

Although Brother @Sagar_Vora, I was not able to backup via Drop Box on deployed server. I had integrated DropBox Cammands via terminal as mentiond on thread. But, While at “Dropbox Settings” allow Dropbox access produces errors. Here it is:

Traceback (most recent call last): File "/home/frappe/frappe-bench/apps/frappe/frappe/app.py", line 56, in application response = frappe.handler.handle() File "/home/frappe/frappe-bench/apps/frappe/frappe/handler.py", line 19, in handle execute_cmd(cmd) File "/home/frappe/frappe-bench/apps/frappe/frappe/handler.py", line 42, in execute_cmd ret = frappe.call(method, **frappe.form_dict) File "/home/frappe/frappe-bench/apps/frappe/frappe/__init__.py", line 907, in call return fn(*args, **newargs) File "/home/frappe/frappe-bench/apps/frappe/frappe/integrations/doctype/dropbox_settings/dropbox_settings.py", line 54, in get_dropbox_authorize_url request_token = sess.obtain_request_token() File "/home/frappe/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/frappe/frappe-bench/env/local/lib/python2.7/site-packages/dropbox/rest.py", line 322, in POST return cls.IMPL.POST(*n, **kw) File "/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/dropbox/rest.py", line 260, in POST is_json_request=is_json_request) File "/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/dropbox/rest.py", line 235, in request raise ErrorResponse(r, r.read()) ErrorResponse: [401] u'Unauthorized'

Any Solutions Please? or steps follow to install it properly?