Openerp server error

[Amit]

OpenERP Server Error

Client Traceback (most recent call last):
  File "/opt/openerp/v7/web/addons/web/http.py", line 204, in dispatch
    response["result"] = method(self, **self.params)
  File "/opt/openerp/v7/web/addons/web/controllers/main.py", line 777, in create
    params['create_admin_pwd'])
  File "/opt/openerp/v7/web/addons/web/session.py", line 30, in proxy_method
    result = self.session.send(self.service_name, method, *args)
  File "/opt/openerp/v7/web/addons/web/session.py", line 97, in send
    raise xmlrpclib.Fault('AccessDenied', openerp.tools.ustr(e))

Server Access denied.

I got this error when i try to create database.. i searched for solution for that and i couldn't run this command:
python setup.py install

Please help me.
Thanks in advance!!