Unexpected error happenend

This is the rescue page. See the exception details below

InvalidOperationException

Message:
There is already an open DataReader associated with this Command which must be closed first.

StackTrace:
   at System.Data.SqlClient.SqlInternalConnectionTds.ValidateConnectionForExecute(SqlCommand command)
   at System.Data.SqlClient.SqlConnection.ValidateConnectionForExecute(String method, SqlCommand command)
   at System.Data.SqlClient.SqlCommand.ValidateCommand(String method, Boolean async)
   at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result)
   at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
   at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
   at System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior)
   at System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior)
   at System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
   at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
   at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet)
   at SmartStore.Web.Controllers.AbstractBaseController.ExecuteDataset(IDbConnection conn, CommandType cmdType, String sqlQuery, IDbDataParameter[] parameters) in C:\Desarrollo\SmartStore\SmartStore\SmartStore.Web\Controllers\AbstractBaseController.cs:line 399
   at SmartStore.Web.Controllers.AbstractBaseController.ExecuteDataset(CommandType cmdType, String sqlQuery, IDbDataParameter[] parameters) in C:\Desarrollo\SmartStore\SmartStore\SmartStore.Web\Controllers\AbstractBaseController.cs:line 364
   at SmartStore.Web.Controllers.Store.AbstractStoreController.GetCrosssellingProducts(Product p) in C:\Desarrollo\SmartStore\SmartStore\SmartStore.Web\Controllers\Store\AbstractStoreController.cs:line 45
   at SmartStore.Web.Controllers.Store.ProductsController.View(Int32 categoryId, Int32 productId) in C:\Desarrollo\SmartStore\SmartStore\SmartStore.Web\Controllers\Store\ProductsController.cs:line 150

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