Openerp PostgreSQL issue

i just installed openerp in this Ubuntu droplet it works perfectly put i get this error when i try to create it’s database " Client Traceback (most recent call last): File “/usr/lib/pymodules/python2.7/openerp/addons/web/http.py”, line 204, in dispatch response[“result”] = method(self, **self.params) File “/usr/lib/pymodules/python2.7/openerp/addons/web/controllers/main.py”, line 777, in create params[‘create_admin_pwd’]) File “/usr/lib/pymodules/python2.7/openerp/addons/web/session.py”, line 30, in proxy_method result = self.session.send(self.service_name, method, *args) File “/usr/lib/pymodules/python2.7/openerp/addons/web/session.py”, line 97, in send raise xmlrpclib.Fault(‘AccessDenied’, openerp.tools.ustr(e))

Server Access denied. "

i googled it and this error means that the deb i installed didn’t configer is PostgreSQL database any help? thanks