Fatal error: Uncaught Error: Interface "Microsoft\Kiota\Abstractions\Serialization\SerializationWriter" not found in /home/fortebku/smtp-mail/vendor/microsoft/kiota-serialization-multipart/src/MultipartSerializationWriter.php:19 Stack trace: #0 {main} thrown in /home/fortebku/smtp-mail/vendor/microsoft/kiota-serialization-multipart/src/MultipartSerializationWriter.php on line 19