Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\DefinedName" not found in /home/romafi/cofortest/php/php-spreadsheet/src/PhpSpreadsheet/NamedFormula.php:7 Stack trace: #0 {main} thrown in /home/romafi/cofortest/php/php-spreadsheet/src/PhpSpreadsheet/NamedFormula.php on line 7