Generación de reportes - Evolution 1.8.3.1 - Oracle

Al generar reportes, plantillas de word y consutlas de excel en evolution 1.8.3.1 (Bases de datos Oracle) me muestra el siguiente error:

System.Data.UpdateException: An error occurred while updating the entries. See the inner exception for details. ---> Oracle.ManagedDataAccess.Client.OracleException: ORA-06550: línea 4, columna 14: PL/SQL: ORA-01031: privilegios insuficientes ORA-06550: línea 4, columna 1: PL/SQL: SQL Statement ignored
 at  OracleInternal.ServiceObjects.OracleCommandImpl.VerifyExecution(OracleConnectionImpl connectionImpl, Int32& cursorId, Boolean bThrowArrayBindRelatedErrors, OracleException& exceptionForArrayBindDML, Boolean& hasMoreRowsInDB, Boolean bFirstIterationDone)
 at  OracleInternal.ServiceObjects.OracleCommandImpl.ExecuteReader(String commandText, OracleParameterCollection paramColl, CommandType commandType, OracleConnectionImpl connectionImpl, OracleDataReaderImpl& rdrImpl, Int32 longFetchSize, Int32 lobPrefetchSize, OracleDependencyImpl orclDependencyImpl, Int64[] scnForExecution, Int64[]& scnFromExecution, OracleParameterCollection& bindByPositionParamColl, Boolean& bBindParamPresent, Boolean isDescribeOnly, Boolean isFromEF)
 at  Oracle.ManagedDataAccess.Client.OracleCommand.ExecuteReader(Boolean requery, Boolean fillRequest, CommandBehavior behavior)
 at  Oracle.ManagedDataAccess.Client.OracleCommand.ExecuteDbDataReader(CommandBehavior behavior)
 at  System.Data.Mapping.Update.Internal.DynamicUpdateCommand.Execute(UpdateTranslator translator, EntityConnection connection, Dictionary`2 identifierValues, List`1 generatedValues)
 at  System.Data.Mapping.Update.Internal.UpdateTranslator.Update(IEntityStateManager stateManager, IEntityAdapter adapter) --- End of inner exception stack trace ---
 at  System.Data.Mapping.Update.Internal.UpdateTranslator.Update(IEntityStateManager stateManager, IEntityAdapter adapter)
 at  System.Data.Objects.ObjectContext.SaveChanges(SaveOptions options)
 at  Aseinfo.Infrastructure.Data.ConfigDataContext.SaveChanges(SaveOptions options)
 at  Aseinfo.Infrastructure.Base.Entity.GenericEntityRepository.SaveChanges() in c:\VH4\Infrastructure\Base\Entity\GenericEntityRepository.cs:line 226
 at  Aseinfo.Infrastructure.Base.Entity.EntityServiceBase`2.SaveChanges() in c:\VH4\Infrastructure\Base\Entity\EntityServiceBase.cs:line 530
 at  Aseinfo.Infrastructure.Controllers.ReportesController.AgregarEjecucionEnBitacora(Reporte reporte, Dictionary`2 parametros, String errorMessage, String stackTrace, ResultadoEjecucionReporte resultadoEjecucion) in c:\VH4\Infrastructure\Controllers\ReportesController.cs:line 634
 at  Aseinfo.Infrastructure.Controllers.ReportesController.GenerarReporte(String codigoReporte, Dictionary`2 parametros) in c:\VH4\Infrastructure\Controllers\ReportesController.cs:line 243
 at  lambda_method(Closure , ControllerBase , Object[] )
 at  System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
 at  System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
 at  System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12()
 at  System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
 at  System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
 at  System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
 at  System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
 at  System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)