Handling the Error: The field RQ_REQ_STATUS cannot be used with a .

Hi , i am trying to extract requirements using the function GetChildrenList(id), the following is my code:

Sub ()

....

..

Set rfact1 = QCConnection.ReqFactory
Set rfilter1 = rfact1.Filter
rfilter("RQ_TYPE_ID") = "Functional" Or "Folder" Or "User Story"
rfilter1.KeepHierarchical = True
father_id1 = 81
GetChildren1 rfact1, rfilter1, father_id1

end sub

Sub GetChildren1(rfactr2, rfilterr2, father_idr2)

Set Childrenr1 = rfactr2.GetFilteredChildrenList(father_idr2, rfilterr2)

For Each Childr1 In Childrenr1

MsgBox(Childr1.field("RQ_REQ_STATUS"))  'Err: The field cannot be used with the type <Folder>

MsgBox(Childr1.field("RQ_USER_TEMPLATE_16"))  'Err: the field cannot be  used with the type <Folder>

MsgBox(Childr1.field("RQ_REQ_NAME")) 'this is working fine

GetChildren1 rfactr2, rfilterr2, Childr1.ID

Next

end sub

Could you please help me fix this errors..thanks