Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Calculation\Statistical\AggregateBase" not found in /home/cetach/test2.cetach2.edu.gt/crudfaltas1_1/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/Statistical/Averages.php:8 Stack trace: #0 {main} thrown in /home/cetach/test2.cetach2.edu.gt/crudfaltas1_1/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/Statistical/Averages.php on line 8