Fatal error: Uncaught Error: Class "PhpOffice\Math\Element\AbstractElement" not found in E:\phpProject\TEST\vat_api_it_client\vendor\phpoffice\math\src\Math\Element\Superscript.php:5 Stack trace: #0 {main} thrown in E:\phpProject\TEST\vat_api_it_client\vendor\phpoffice\math\src\Math\Element\Superscript.php on line 5