Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Calculation\Database\DatabaseAbstract" not found in /home/rwebserver/public_html/mmei/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/Database/DAverage.php:8
Stack trace:
#0 {main}
thrown in /home/rwebserver/public_html/mmei/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/Database/DAverage.php on line 8