Fatal error: Uncaught Error: Class 'PhpOffice\PhpSpreadsheet\Chart\Properties' not found in /home/dvidiv74/public_html/comp-life/PhpSpreadsheet-master/src/PhpSpreadsheet/Chart/GridLines.php:11 Stack trace: #0 {main} thrown in /home/dvidiv74/public_html/comp-life/PhpSpreadsheet-master/src/PhpSpreadsheet/Chart/GridLines.php on line 11