Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Style\Supervisor" not found in /home/rwebserver/public_html/operations/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Style/Style.php:11 Stack trace: #0 {main} thrown in /home/rwebserver/public_html/operations/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Style/Style.php on line 11