Fatal error: Uncaught Error: Class 'PhpOffice\PhpSpreadsheet\Calculation\Financial\FinancialValidations' not found in /www/wwwroot/xhtx.xianghao-power.com/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/Financial/Securities/SecurityValidations.php:9 Stack trace: #0 {main} thrown in /www/wwwroot/xhtx.xianghao-power.com/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/Financial/Securities/SecurityValidations.php on line 9