SeleniumVBA SwitchToWindow

test.bas

Sub SwitchWindowTest()
    Dim driver As New WebDriver
    Call driver.Start("firefox", "http://www.red.oit-net.jp/")
    Call driver.get("/tatsuya/java/winopen.htm")
    
    Dim beforeHwd As String
    beforeHwd = driver.WindowHandle 'Returns the handle of the current window.
    
    driver.findElementByCssSelector("table.waku:nth-child(13) > tbody:nth-child(1) > tr:nth-child(1) > td:nth-child(1) > form:nth-child(3) > input:nth-child(1)").click
    
    Dim Hwds
    Hwds = driver.WindowHandles ' Returns the handles of all windows within the current session.
    Dim window: For Each window In Hwds
        If window <> beforeHwd Then
            driver.switchToWindow window
            driver.get "/"
            driver.Close
        End If
    Next
    

    Set driver = driver.switchToWindow(beforeHwd) 'Switches focus to the specified window.
    driver.get "/tatsuya"
End Sub

Call driver.get("/tatsuya/java/winopen.htm") << This line produce the following error
13 UnknownError
unknown error: net::ERR_NAME_NOT_RESOLVED
(Session info: chrome=108.0.5359.125)
(Driver info: chromedriver=108.0.5359.71 (1e0e3868ee06e91ad636a874420e3ca3ae3756ac-refs/branch-heads/5359@{#1016}),platform=Windows NT 10.0.19045 x86_64)

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beforeHwd = driver.WindowHandle << This line produce this error

438 Object doesn't support this property or method