Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Writer\Xlsx\WriterPart" not found in /var/www/erp/spreadsheet/src/PhpSpreadsheet/Writer/Xlsx/Theme.php:35
Stack trace:
#0 {main}
thrown in /var/www/erp/spreadsheet/src/PhpSpreadsheet/Writer/Xlsx/Theme.php on line 35