Fatal error: Uncaught Error: Class "PHPExcel_Chart_Properties" not found in /home/apolo/public_html/sgdpr/vendor/phpoffice/phpexcel/Classes/PHPExcel/Chart/GridLines.php:10 Stack trace: #0 {main} thrown in /home/apolo/public_html/sgdpr/vendor/phpoffice/phpexcel/Classes/PHPExcel/Chart/GridLines.php on line 10