Fatal error: Uncaught Error: Interface 'Box\Spout\Reader\IteratorInterface' not found in /var/www/html/portal/vendor/box/spout/src/Spout/Reader/XLSX/RowIterator.php:21 Stack trace: #0 {main} thrown in /var/www/html/portal/vendor/box/spout/src/Spout/Reader/XLSX/RowIterator.php on line 21