Fatal error: Uncaught Error: Class 'PhpOffice\PhpSpreadsheet\Style\Supervisor' not found in C:\xampp\htdocs\ws_gr1f0sp3ruanos\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Style\Border.php:7 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ws_gr1f0sp3ruanos\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Style\Border.php on line 7