Fatal error: Uncaught Error: Class "PhpOffice\PhpWord\Writer\EPub3\Part\AbstractPart" not found in /var/www/binary/vendor/phpoffice/phpword/src/PhpWord/Writer/EPub3/Part/Nav.php:7 Stack trace: #0 {main} thrown in /var/www/binary/vendor/phpoffice/phpword/src/PhpWord/Writer/EPub3/Part/Nav.php on line 7