Error while querying inherited class from telerik open access ORM

Question

I am using latest version of Telerik Open Access ORM in my ASP.net C# web application. In my EntitiesModel1.rlinq , I have mapped a table named "Customer " from a database. Then I have created a domain class named "SubCustomer" and added anew property field named "SubName : String" into it. Then deleted default property filed from the domain class. Then I have applied inheritance for Customer-SubCustomer classes. So the inheritance arrow pointing from SubCustomer to Customer entity now.

I have then applied vertical inheritance stuff to SubCustomer class and mapped "SubName" field with "CustomerName" field in Customer Class using "Default *mapping*". The Update from database model and validate all process have been completed successfully without having any error or warning.

While deploying this context in my web application and querying like :

        using (EntitiesModel1 context = new EntitiesModel1())
        {             
            List<SubCustomer> lstCustomer = (from entity in context.SubCustomer
                                        select entity).ToList();
        }

I am getting an error:

*Error executing query: Telerik.OpenAccess.RT.sql.SQLException: Invalid object name 'SubCustomer. at Telerik.OpenAccess.RT.Adonet2Generic.Impl.PreparedStatementImp.executeQuery() at OpenAccessRuntime.Relational.conn.PooledPreparedStatement.executeQuery() at OpenAccessRuntime.Relational.fetch.FetchResultImp.Execute() SQL: SELECT a.[CustomerID] AS COL1, b.[voa_class] AS COL2, a.[SubName] AS COL3, b.*

I have tried to query "Customer" entity as well but getting the same error. Please help.

Regards, Praveen.