Fatal error: Uncaught Error: Class 'Box\Spout\Common\Entity\Style\CellAlignment' not found in /srv/users/koolphp/apps/koolreport/public/koolreport/excel/WidgetBuilder.php:76 Stack trace: #0 /srv/users/koolphp/apps/koolreport/public/koolreport/excel/TextBuilder.php(54): koolreport\excel\WidgetBuilder->getSpreadsheetStyleObj(Array) #1 /srv/users/koolphp/apps/koolreport/public/koolreport/excel/ExportHandler.php(328): koolreport\excel\TextBuilder->saveContentToBigSpreadsheet(Array, Object(Box\Spout\Writer\XLSX\Writer)) #2 /srv/users/koolphp/apps/koolreport/public/koolreport/excel/ExportHandler.php(345): koolreport\excel\ExportHandler->configToBigSpreadsheet('xlsx') #3 /srv/users/koolphp/apps/koolreport/public/koolreport/excel/BigSpreadsheetExportable.php(60): koolreport\excel\ExportHandler->exportToXLSX('MyReportSpreads...', Array) #4 /srv/users/koolphp/apps/koolreport/public/examples/reports/excel/big_spreadsheet/export.php(9): MyReport->exportToXLSX('MyReportSpreads...') #5 {main} thrown in /srv/users/koolphp/apps/koolreport/public/koolreport/excel/WidgetBuilder.php on line 76