Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Calculation\Engineering\ConvertBase" not found in /var/www/html/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/Engineering/ConvertHex.php:8
Stack trace:
#0 {main}
thrown in /var/www/html/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/Engineering/ConvertHex.php on line 8