System.NullReferenceException: 'Object variable or With block variable not set.'

[Zachary Bruno]

here is my code:

Public Class Form1
Private ReadOnly wclient As Object

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

wclient.DownloadString("https://mywebsite/file.php?target=" + TextBox1.Text + "&subject=" + TextBox2.Text + "&message=" + TextBox3.Text + "&amount=" + TextBox4.Text + "&sender=" + TextBox5.Text)

End Sub
End Class


mywebsite is not actually my website link

Can anyone tell me why i het this issue?

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