[NullReferenceException: Object reference not set to an instance of an object.]
System.Data.Linq.SqlClient.QueryConverter.VisitInvocation(InvocationExpression invoke) +1250
System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +1133
System.Data.Linq.SqlClient.QueryConverter.VisitExpression(Expression exp) +34
System.Data.Linq.SqlClient.QueryConverter.VisitBinary(BinaryExpression b) +49
System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +460
System.Data.Linq.SqlClient.QueryConverter.VisitExpression(Expression exp) +34
System.Data.Linq.SqlClient.QueryConverter.VisitBinary(BinaryExpression b) +33
System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +460
System.Data.Linq.SqlClient.QueryConverter.VisitExpression(Expression exp) +34
System.Data.Linq.SqlClient.QueryConverter.VisitBinary(BinaryExpression b) +33
System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +460
System.Data.Linq.SqlClient.QueryConverter.VisitExpression(Expression exp) +34
System.Data.Linq.SqlClient.QueryConverter.VisitWhere(Expression sequence, LambdaExpression predicate) +159
System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +874
System.Data.Linq.SqlClient.QueryConverter.VisitAggregate(Expression sequence, LambdaExpression lambda, SqlNodeType aggType, Type returnType) +82
System.Data.Linq.SqlClient.QueryConverter.VisitSequenceOperatorCall(MethodCallExpression mc) +7121
System.Data.Linq.SqlClient.QueryConverter.VisitInner(Expression node) +874
System.Data.Linq.SqlClient.QueryConverter.ConvertOuter(Expression node) +133
System.Data.Linq.SqlClient.SqlProvider.BuildQuery(Expression query, SqlNodeAnnotations annotations) +168
System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query) +165
System.Data.Linq.DataQuery`1.System.Linq.IQueryProvider.Execute(Expression expression) +42
KMS.Web._Default11.LoadYearTree() +4038
KMS.Web._Default11.Page_Load(Object sender, EventArgs e) +2318
System.Web.UI.Control.OnLoad(EventArgs e) +108
System.Web.UI.Control.LoadRecursive() +90
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533
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