Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\DefinedName" not found in /home/rwebserver/public_html/operations/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/NamedRange.php:8
Stack trace:
#0 {main}
thrown in /home/rwebserver/public_html/operations/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/NamedRange.php on line 8