Traceback (most recent call last):
  File "/trytond/wsgi.py", line 47, in dispatch_request
    return endpoint(request, **request.view_args)
  File "/trytond/protocols/dispatcher.py", line 41, in rpc
    request, database_name, *request.rpc_params)
  File "/trytond/wsgi.py", line 39, in auth_required
    return wrapped(*args, **kwargs)
  File "/trytond/protocols/wrappers.py", line 105, in wrapper
    return func(request, pool, *args, **kwargs)
  File "/trytond/protocols/dispatcher.py", line 162, in _dispatch
    result = rpc.result(meth(*c_args, **c_kwargs))
  File "/trytond/model/modelview.py", line 329, in fields_view_get
    result['field_childs'])
  File "/trytond/model/modelview.py", line 424, in _view_look_dom_arch
    fields_width=fields_width)
  File "/trytond/model/modelview.py", line 577, in __view_look_dom
    fields_width=fields_width, fields_attrs=fields_attrs)
  File "/trytond/model/modelview.py", line 577, in __view_look_dom
    fields_width=fields_width, fields_attrs=fields_attrs)
  File "/trytond/model/modelview.py", line 577, in __view_look_dom
    fields_width=fields_width, fields_attrs=fields_attrs)
  File "/trytond/model/modelview.py", line 516, in __view_look_dom
    field = cls._fields[fname]
KeyError: 'fecha_dua'