Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Writer\BaseWriter" not found in /home/apolo/public_html/sgdpr/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xlsx.php:28 Stack trace: #0 {main} thrown in /home/apolo/public_html/sgdpr/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xlsx.php on line 28