Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Style\Supervisor" not found in C:\xampp\htdocs\contoh\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Style\Color.php:5
Stack trace:
#0 {main}
thrown in C:\xampp\htdocs\contoh\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Style\Color.php on line 5