Setting up mgmnt_nonconformity test site

I'm trying to set up a test system with OpenERP and the nonconformity module. I used the Bitnami virtual machine to get a quick OpenERP test site running, and managed to install the nonconformity module and its dependancies without any issues.

However, whenever I try to actually create any nonconformities, I get errors.

I'm wondering if I've set something up wrong, or if there might be a better way to test out this system to see if it meets our needs. I'm new to OpenERP.

Error is as follows:

OpenERP Server Error
Client Traceback (most recent call last):
  File "/opt/bitnami/apps/openerp/lib/openerp-7.0_20130922_231028-py2.7.egg/openerp/addons/web/http.py", line 204, in dispatch
    response["result"] = method(self, **self.params)
  File "/opt/bitnami/apps/openerp/lib/openerp-7.0_20130922_231028-py2.7.egg/openerp/addons/web/controllers/main.py", line 1128, in call_kw
    return self._call_kw(req, model, method, args, kwargs)
  File "/opt/bitnami/apps/openerp/lib/openerp-7.0_20130922_231028-py2.7.egg/openerp/addons/web/controllers/main.py", line 1120, in _call_kw
    return getattr(req.session.model(model), method)(*args, **kwargs)
  File "/opt/bitnami/apps/openerp/lib/openerp-7.0_20130922_231028-py2.7.egg/openerp/addons/web/session.py", line 42, in proxy
    result = self.proxy.execute_kw(self.session._db, self.session._uid, self.session._password, self.model, method, args, kw)
  File "/opt/bitnami/apps/openerp/lib/openerp-7.0_20130922_231028-py2.7.egg/openerp/addons/web/session.py", line 30, in proxy_method
    result = self.session.send(self.service_name, method, *args)
  File "/opt/bitnami/apps/openerp/lib/openerp-7.0_20130922_231028-py2.7.egg/openerp/addons/web/session.py", line 103, in send
    raise xmlrpclib.Fault(openerp.tools.ustr(e), formatted_info)

Server Traceback (most recent call last):
  File "/opt/bitnami/apps/openerp/lib/openerp-7.0_20130922_231028-py2.7.egg/openerp/addons/web/session.py", line 89, in send
    return openerp.netsvc.dispatch_rpc(service_name, method, args)
  File "/opt/bitnami/apps/openerp/lib/openerp-7.0_20130922_231028-py2.7.egg/openerp/netsvc.py", line 292, in dispatch_rpc
    result = ExportService.getService(service_name).dispatch(method, params)
  File "/opt/bitnami/apps/openerp/lib/openerp-7.0_20130922_231028-py2.7.egg/openerp/service/web_services.py", line 626, in dispatch
    res = fn(db, uid, *params)
  File "/opt/bitnami/apps/openerp/lib/openerp-7.0_20130922_231028-py2.7.egg/openerp/osv/osv.py", line 188, in execute_kw
    return self.execute(db, uid, obj, method, *args, **kw or {})
  File "/opt/bitnami/apps/openerp/lib/openerp-7.0_20130922_231028-py2.7.egg/openerp/osv/osv.py", line 131, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/opt/bitnami/apps/openerp/lib/openerp-7.0_20130922_231028-py2.7.egg/openerp/osv/osv.py", line 197, in execute
    res = self.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/opt/bitnami/apps/openerp/lib/openerp-7.0_20130922_231028-py2.7.egg/openerp/osv/osv.py", line 185, in execute_cr
    return getattr(object, method)(cr, uid, *args, **kw)
  File "/opt/bitnami/apps/openerp/lib/openerp-7.0_20130922_231028-py2.7.egg/openerp/addons/mgmtsystem_nonconformity/mgmtsystem_nonconformity.py", line 199, in create
    return super(mgmtsystem_nonconformity, self).create(cr, uid, vals, context)
  File "/opt/bitnami/apps/openerp/lib/openerp-7.0_20130922_231028-py2.7.egg/openerp/addons/mail/mail_thread.py", line 256, in create
    self.message_auto_subscribe(cr, uid, [thread_id], list(create_values), context=context)
  File "/opt/bitnami/apps/openerp/lib/openerp-7.0_20130922_231028-py2.7.egg/openerp/addons/mgmtsystem_nonconformity/mgmtsystem_nonconformity.py", line 206, in message_auto_subscribe
    return super(mgmtsystem_nonconformity, self).message_auto_subscribe(cr, uid, ids, updated_fields=updated_fields, context=context, values=values)
TypeError: message_auto_subscribe() got an unexpected keyword argument 'values'