Fatal error: Uncaught Error: Undefined constant "PHPEXCEL_ROOT" in /home/apolo/public_html/sgdpr/vendor/phpoffice/phpexcel/Classes/PHPExcel/Autoloader.php:70 Stack trace: #0 /home/apolo/public_html/sgdpr/vendor/phpoffice/phpexcel/Classes/PHPExcel/Autoloader.php(11): PHPExcel_Autoloader::load('PHPExcel_Shared...') #1 {main} thrown in /home/apolo/public_html/sgdpr/vendor/phpoffice/phpexcel/Classes/PHPExcel/Autoloader.php on line 70