Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Worksheet\CellIterator" not found in /var/www/live/demo7.thesynergate.com/tollplaza-api/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Worksheet/ColumnCellIterator.php:12 Stack trace: #0 {main} thrown in /var/www/live/demo7.thesynergate.com/tollplaza-api/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Worksheet/ColumnCellIterator.php on line 12