Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Writer\Xlsx\WriterPart" not found in E:\install\laragon\www\erp_gpharma_old_db\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Writer\Xlsx\RelsRibbon.php:9 Stack trace: #0 {main} thrown in E:\install\laragon\www\erp_gpharma_old_db\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Writer\Xlsx\RelsRibbon.php on line 9