Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Style\NumberFormat\Wizard\NumberBase" not found in D:\Desktop\Lap Trinh\PM Cong Tac Cong An\QuanLyDoiTuong\QuanLyDoiTuongPHP\libs\PhpSpreadsheet\Style\NumberFormat\Wizard\Scientific.php:7 Stack trace: #0 {main} thrown in D:\Desktop\Lap Trinh\PM Cong Tac Cong An\QuanLyDoiTuong\QuanLyDoiTuongPHP\libs\PhpSpreadsheet\Style\NumberFormat\Wizard\Scientific.php on line 7