Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Writer\Xlsx\WriterPart" not found in /itss/home/arcelormittal/public_html/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xlsx/StringTable.php:12
Stack trace:
#0 {main}
thrown in /itss/home/arcelormittal/public_html/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xlsx/StringTable.php on line 12