I have error showing when I try to run the code its showing the API key all fine but cannot get linked to the URL please help me.Im adding the codeImports SystemImports System.Collections.GenericImports System.NetImports System.ConfigurationImports Newtonsoft.JsonPublic Class RFTJsonTicket Function ReadSetting(key As String) As String Try Dim appSettings = ConfigurationManager.AppSettings Dim result As String = appSettings(key) If IsNothing(result) Then result = "Not found" End If Return result Catch e As ConfigurationErrorsException Console.WriteLine("Error reading app settings") End Try End Function Public Sub TracingTest(ByVal fileName As String) My.Application.Log.WriteEntry("Entering TracingTest with argument " & fileName & ".") My.Application.Log.WriteEntry("Exiting TracingTest with argument " & fileName & ".") End Sub Public Function createJson() As Integer Dim payload As New Dictionary(Of String, Object)() payload.Add("name", "Angry User") payload.Add("email", "api@osticket.com") payload.Add("phone", "3185558634X123") payload.Add("subject", "Testing API") payload.Add("ip", "143.95.243.240") payload.Add("message", "Message HERE") payload.Add("topicId", "1") Dim Client As New WebClient Client.Headers.Add("X-API-Key", ReadSetting("API")) Client.Headers.Add("Expect", String.Empty) Client.Headers.Add("User-Agent", "MyosTicket Client") Dim strgJson As String = JsonConvert.SerializeObject(payload) Client.UploadString("http://onlineticketcentral.com/api/ost-api.php", "POST", strgJson) Return 0 End FunctionEnd Class