Fatal error: Uncaught Error: Class 'PhpOffice\PhpSpreadsheet\Calculation\Database\DatabaseAbstract' not found in /var/www/uchetprosto.usa-ak.com/up/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/Database/DAverage.php:8 Stack trace: #0 {main} thrown in /var/www/uchetprosto.usa-ak.com/up/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/Database/DAverage.php on line 8