[ArgumentNullException: Value cannot be null.
Parameter name: source]
System.Linq.Enumerable.Select(IEnumerable`1 source, Func`2 selector) +672
WebApp.MvcApplication.Application_AcquireRequestState(Object sender, EventArgs e) +766
System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +213
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +76
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