Fatal error: Uncaught Error: Class 'PhpOffice\PhpWord\Element\AbstractContainer' not found in /var/www/app/appregwebservice/vendor/phpoffice/phpword/src/PhpWord/Element/TextBox.php:27 Stack trace: #0 {main} thrown in /var/www/app/appregwebservice/vendor/phpoffice/phpword/src/PhpWord/Element/TextBox.php on line 27