Fatal error: Uncaught Error: Class 'Box\Spout\Writer\Common\Manager\WorkbookManagerAbstract' not found in C:\laragon\www\gsp-mtapp\vendor\box\spout\src\Spout\Writer\XLSX\Manager\WorkbookManager.php:14 Stack trace: #0 {main} thrown in C:\laragon\www\gsp-mtapp\vendor\box\spout\src\Spout\Writer\XLSX\Manager\WorkbookManager.php on line 14