Fatal error: Uncaught Error: Class 'PhpOffice\PhpSpreadsheet\Calculation\Statistical\AggregateBase' not found in /www/wwwroot/xhtx.xianghao-power.com/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/Statistical/Averages.php:8 Stack trace: #0 {main} thrown in /www/wwwroot/xhtx.xianghao-power.com/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/Statistical/Averages.php on line 8