Fatal error: Uncaught Error: Class 'Box\Spout\Writer\Common\Manager\Style\StyleManager' not found in E:\xampp\htdocs\www\qr251\vendor\box\spout\src\Spout\Writer\ODS\Manager\Style\StyleManager.php:14 Stack trace: #0 {main} thrown in E:\xampp\htdocs\www\qr251\vendor\box\spout\src\Spout\Writer\ODS\Manager\Style\StyleManager.php on line 14