[text] Heror e oK. k Jorg pentaho reporting engine classic core ReportProcessingErception Failed o process the report st org pentaho reporting engine classic.core layout output AbstractReportProcessor processReporiAbsiractReportProcessor java1479 at orgpentaho.reporting.designer.core.actions.report preview PreviewExcelActionSExportTask runPreviewExcelAction java116 atjava lang Thread runUnla Caused by javalang llegalStateException atorg pentaho reporting engine classic core layout output AbstractReporiProcessor processPaginationL evel AbstractReportProcessor java357 atorg pentaho reporting engine classic core layout output AbstraciReporiProcessor prepareReporiProcessingAbsiractReportProcessor java502 at org pentaho reporting engine classic core layout output AbstraciReportProcessor processReporiAbsiractReportProcessor java1433 2more R O R R R R R R B