check the data-source (in code NHibernate) of the report.

Data Source error when generating report:

at NHibernate.Persister.Entity.AbstractPropertyMapping.ToType(String propertyName)
at NHibernate.Loader.Criteria.CriteriaQueryTranslator.GetPathInfo(String path)
at NHibernate.Loader.Criteria.CriteriaQueryTranslator.CreateCriteriaEntityNameMap()
at NHibernate.Loader.Criteria.CriteriaQueryTranslator..ctor(ISessionFactoryImplementor factory, CriteriaImpl criteria, String rootEntityName, String rootSQLAlias)
at NHibernate.Loader.Criteria.CriteriaLoader..ctor(IOuterJoinLoadable persister, ISessionFactoryImplementor factory, CriteriaImpl rootCriteria, String rootEntityName, IDictionary`2 enabledFilters)
at NHibernate.Impl.SessionImpl.List(CriteriaImpl criteria, IList results)
at NHibernate.Impl.CriteriaImpl.List(IList results)
at NHibernate.Impl.CriteriaImpl.List[T]()
at Mx.CFA.Data.Repositories.TransactionSummaryRepository.GetTBCSalesTransactionsByDateRange(Int64 entityId, DateTime startDate, DateTime endDate) in C:\CFA\Inform\CFACustom\Mx.CFA.Data\Repositories\TransactionSummaryRepository.cs:line 116
at Mx.CFA.Services.OnAccountSalesService.GetOnAccountSalesByDateRange(Int64 entityId, DateTime startBusinessDate, DateTime endBusinessDate) in C:\CFA\Inform\CFACustom\Mx.CFA.Services\OnAccountSalesService.cs:line 80
at Mx.Services.Cash.CfaOutsideSalesService.GetOutsideSalesKpis(Int64 entityId, DateTime startDate, DateTime endDate) in C:\CFA\Inform\Mx.Services.Cash\CfaOutsideSalesService.cs:line 44
at Mx.Services.Cash.Kpi.CashKpiBase`1.GetOutsideSalesKpiListByDateRange(DateRange range, Func`2 getValue) in C:\CFA\Inform\Mx.Services.Cash\Kpi\BaseClasses\CashKpiBase.cs:line 77
at Mx.Services.Cash.Kpi.CfaOutsideSalesGrossSalesKpi.GetKpiListByCashier(DateRange range) in C:\CFA\Inform\Mx.Services.Cash\Kpi\Implementation\OutsideSales\CfaOutsideSalesGrossSalesKpi.cs:line 13
at Mx.Services.Cash.Kpi.CashKpiBase`1.GetKpiListByDayDec(DateRange range) in C:\CFA\Inform\Mx.Services.Cash\Kpi\BaseClasses\CashKpiBase.cs:line 242
at Mx.Services.Cash.ReportingService.GetMonthlySalesSummaryData(Int64 entityId, DateRange range) in C:\CFA\Inform\Mx.Services.Cash\ReportingService.cs:line 181
at Mx.Services.Cash.ReportingService.GetMonthlySalesSummaryData(Int64 entityId, DateTime date) in C:\CFA\Inform\Mx.Services.Cash\ReportingService.cs:line 167