i have updated POSBOx but it stopped working and creating database ! it gives me the error as below 

dose any one know about this issue and how to get it solved ?

Odoo Server Error

Traceback (most recent call last):
  File "/home/pi/odoo/openerp/http.py", line 546, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/home/pi/odoo/openerp/http.py", line 583, in dispatch
    result = self._call_function(**self.params)
  File "/home/pi/odoo/openerp/http.py", line 320, in _call_function
    return self.endpoint(*args, **kwargs)
  File "/home/pi/odoo/openerp/http.py", line 812, in __call__
    return self.method(*args, **kw)
  File "/home/pi/odoo/openerp/http.py", line 412, in response_wrap
    response = f(*args, **kw)
  File "/home/pi/odoo/addons/web/controllers/main.py", line 703, in create
    params['create_admin_pwd'])
  File "/home/pi/odoo/openerp/http.py", line 888, in proxy_method
    result = dispatch_rpc(self.service_name, method, args)
  File "/home/pi/odoo/openerp/http.py", line 115, in dispatch_rpc
    result = dispatch(method, params)
  File "/home/pi/odoo/openerp/service/db.py", line 65, in dispatch
    security.check_super(passwd)
  File "/home/pi/odoo/openerp/service/security.py", line 32, in check_super
    raise openerp.exceptions.AccessDenied()
AccessDenied: Access denied.