Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Style\Supervisor" not found in /var/www/erp/PhpSpreadsheet-master/src/PhpSpreadsheet/Style/Style.php:8
Stack trace:
#0 {main}
thrown in /var/www/erp/PhpSpreadsheet-master/src/PhpSpreadsheet/Style/Style.php on line 8