Fatal error: Uncaught Error: Class 'Box\Spout\Reader\Exception\ReaderException' not found in E:\xampp\htdocs\www\order\qr250\vendor\box\spout\src\Spout\Reader\Exception\ReaderNotOpenedException.php:8 Stack trace: #0 {main} thrown in E:\xampp\htdocs\www\order\qr250\vendor\box\spout\src\Spout\Reader\Exception\ReaderNotOpenedException.php on line 8