Fatal error: Uncaught Error: Class 'PhpOffice\PhpSpreadsheet\Exception' not found in /home/dvidiv74/public_html/comp-life/PhpSpreadsheet-master/src/PhpSpreadsheet/Calculation/Exception.php:7 Stack trace: #0 {main} thrown in /home/dvidiv74/public_html/comp-life/PhpSpreadsheet-master/src/PhpSpreadsheet/Calculation/Exception.php on line 7