Error when opening a new module

I had hidden the production module until now but now when I am trying to use it I get the following error. I have explored the forum and there has been a previous post on this as well but of no help. Could someone please help?

 Traceback (most recent call last):
  File "/home/frappe/erp/apps/frappe/frappe/", line 55, in application
    response = frappe.handler.handle()
  File "/home/frappe/erp/apps/frappe/frappe/", line 19, in handle
  File "/home/frappe/erp/apps/frappe/frappe/", line 36, in execute_cmd
    ret =, **frappe.form_dict)
  File "/home/frappe/erp/apps/frappe/frappe/", line 880, in call
    return fn(*args, **newargs)
TypeError: get() takes exactly 1 argument (0 given)