diff --git a/src/ShardingCore/Core/VirtualTables/OneDbVirtualTable.cs b/src/ShardingCore/Core/VirtualTables/OneDbVirtualTable.cs
index 7f6c54d3..556a33c5 100644
--- a/src/ShardingCore/Core/VirtualTables/OneDbVirtualTable.cs
+++ b/src/ShardingCore/Core/VirtualTables/OneDbVirtualTable.cs
@@ -61,7 +61,7 @@ namespace ShardingCore.Core.VirtualTables
                 return new List<IPhysicTable>(1) {routeWithValue};
             }
 
-            throw new NotImplementedException(nameof(TableRouteConfig));
+            throw new ShardingCoreException(" route entity queryable or sharding key value is null ");
         }