Fatal error: Uncaught Error: Class 'PhpOffice\PhpSpreadsheet\Calculation\Database\DatabaseAbstract' not found in E:\xampp\htdocs\webhost_v2\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Calculation\Database\DVarP.php:7 Stack trace: #0 {main} thrown in E:\xampp\htdocs\webhost_v2\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Calculation\Database\DVarP.php on line 7