Sweet Alert Pop up is not working in Vb.Net

Hi Developers,

Am working on a vb.net project. in that Sweet Alert Pop-Up is nopt working..

Calling method

glblGeneral.ErrorMessage(Me, "test", "Alert")

Method:

Public Sub ErrorMessage(ByVal Control As UI.Control, ByVal Message As String, Optional ByVal Title As String = "Alert", Optional ByVal callback As String = "")

Try

ScriptManager.RegisterStartupScript(Control, Control.GetType, "Script", "swal('" + Title + "','" + Message + "','error');", True)

Catch ex As Exception

Err_Handler("General", "ErrorMessage", ex.Message)

End Try

End Sub

If anyone know how to solve this kindly suggest me to done this.

Thanks & Regards,

Paul.S