Macro to Login webpage

[wallstudio]

I need to login to a webpage from Macro below. However, I can't locate the form and those input box. Can anyone help?
This is the URL. "https://logon.aastocks.com/mainsite/en/login.aspx?"
Thanks a lot.

Sub Login_AA()
    
    Const cURL = "https://logon.aastocks.com/mainsite/en/login.aspx?"
    Const cUserID = "ID"
    Const cPwd = "PW"
    
    Dim ie As Object
    Dim doc As HTMLDocument
    Dim PageForm As HTMLFormElement
    Dim UserIdBox As HTMLInputElement
    Dim PasswordBox As HTMLInputElement
    Dim FormButton As HTMLInputButtonElement
    Dim Elem As IHTMLElement
    
    Set ie = CreateObject("InternetExplorer.Application")
    ie.Visible = True
    ie.navigate cURL
    
    On Error GoTo Err_Handler
    
    
Do While ie.busy Or Not ie.readyState = IE_READYSTATE.complete: DoEvents: Loop
           
Set doc = ie.document
    
    Debug.Print "Login page: " & ie.LocationURL
    For Each Elem In doc.all
        
    Next
    
    Set PageForm = doc.forms("XXX")
             
    Set UserIdBox = PageForm.elements("XXX")
    UserIdBox.Value = cUserID
      
    Set PasswordBox = PageForm.elements("XXX")
    PasswordBox.Value = cPwd
    
        
    PageForm.submit
    
      
Do While ie.busy Or Not ie.readyState = IE_READYSTATE.complete: DoEvents: Loop
    
Exit_This_Sub:
Exit Sub
Err_Handler:
Resume Exit_This_Sub
    
End Sub