Fatal error: Uncaught Error: Class 'PhpOffice\PhpSpreadsheet\Worksheet\CellIterator' not found in D:\xampp\htdocs\psp\backend\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Worksheet\RowCellIterator.php:12
Stack trace:
#0 {main}
thrown in D:\xampp\htdocs\psp\backend\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Worksheet\RowCellIterator.php on line 12