Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Reader\Xlsx\BaseParserClass" not found in /var/www/erp/PhpSpreadsheet-master/src/PhpSpreadsheet/Reader/Xlsx/ColumnAndRowAttributes.php:11
Stack trace:
#0 {main}
thrown in /var/www/erp/PhpSpreadsheet-master/src/PhpSpreadsheet/Reader/Xlsx/ColumnAndRowAttributes.php on line 11