Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Style\Supervisor" not found in /home/alkhalaffamily/public_html/test/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Style/NumberFormat.php:9 Stack trace: #0 {main} thrown in /home/alkhalaffamily/public_html/test/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Style/NumberFormat.php on line 9