Error ORA-08103 al generar un reporte

Al generar un reporte en crystal report me muestra el siguiente error:

Oracle.ManagedDataAccess.Client.OracleException (0x00001FA7): ORA-08103: el objeto ya no existe at OracleInternal.ServiceObjects.OracleDataReaderImpl.FetchMoreRows(Int32 noOfRowsToFetch) at Oracle.ManagedDataAccess.Client.OracleDataReader.Read() at System.Data.Common.DataAdapter.FillLoadDataRow(SchemaMapping mapping) at System.Data.Common.DataAdapter.FillFromReader(DataSet dataset, DataTable datatable, String srcTable, DataReaderContainer dataReader, Int32 startRecord, Int32 maxRecords, DataColumn parentChapterColumn, Object parentChapterValue) at System.Data.Common.DataAdapter.Fill(DataSet dataSet, String srcTable, IDataReader dataReader, Int32 startRecord, Int32 maxRecords) at Oracle.ManagedDataAccess.Client.OracleDataAdapter.Fill(DataSet dataSet, String srcTable, IDataReader dataReader, Int32 startRecord, Int32 maxRecords) at Oracle.ManagedDataAccess.Client.OracleDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet) at Microsoft.Practices.EnterpriseLibrary.Data.Database.DoLoadDataSet(IDbCommand command, DataSet dataSet, String[] tableNames) at Microsoft.Practices.EnterpriseLibrary.Data.Database.LoadDataSet(DbCommand command, DataSet dataSet, String[] tableNames) at EntLibContrib.Data.ManagedOdpNet.OracleDatabase.LoadDataSet(DbCommand command, DataSet dataSet, String[] tableNames) at Microsoft.Practices.EnterpriseLibrary.Data.Database.ExecuteDataSet(DbCommand command) at EntLibContrib.Data.ManagedOdpNet.OracleDatabase.ExecuteDataSet(DbCommand command) at Aseinfo.Infrastructure.Services.ReporteService.GetReportData(Reporte reporte, IDictionary`2 valoresParametros) in c:\VH4\Infrastructure\Services\Reportes\ReporteService.cs:line 92 at Aseinfo.Infrastructure.Services.ReporteService.GenerateReport(Reporte reporte, IEnvironmentVariables variables, IDictionary`2 valoresParametros) in c:\VH4\Infrastructure\Services\Reportes\ReporteService.cs:line 142 at Aseinfo.Infrastructure.Controllers.ReportesController.GenerarReporte(String codigoReporte, Dictionary`2 parametros) in c:\VH4\Infrastructure\Controllers\ReportesController.cs:line 220