[InvalidOperationException: La séquence ne contient aucun élément.]
System.Linq.Enumerable.Single(IEnumerable`1 source) +316
Agora.Inscription.View.GetContent() +360
Agora.Inscription.ClientDefaultControl.Page_Init(Object sender, EventArgs e) +4179
System.Web.UI.Control.OnInit(EventArgs e) +79
System.Web.UI.UserControl.OnInit(EventArgs e) +108
System.Web.UI.Control.InitRecursive(Control namingContainer) +390
System.Web.UI.Control.AddedControl(Control control, Int32 index) +204
System.Web.UI.ControlCollection.Add(Control child) +157
Agora.Inscription.PL._Default.BindUserControl() +241
Agora.Inscription.PL._Default.Page_Init(Object sender, EventArgs e) +214
System.Web.UI.Control.OnInit(EventArgs e) +79
System.Web.UI.Page.OnInit(EventArgs e) +13
System.Web.UI.<InitRecursiveAsync>d__225.MoveNext() +552
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +102
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +64
System.Web.Util.WithinCancellableCallbackTaskAwaiter.GetResult() +30
System.Web.UI.<ProcessRequestMainAsync>d__523.MoveNext() +2552
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