message: Fixed receipt mapper issue
diff: @@ -200,6 +200,7 @@ const extractArtifactId = (receiptType: ReceiptType, id: string): MosaicId | Nam
  case ReceiptType.Mosaic_Expired:
  return new MosaicId(id);
  case ReceiptType.Namespace_Expired:
  + case ReceiptType.Namespace_Deleted:
  return NamespaceId.createFromEncoded(id);
  default:
  throw new Error('Receipt type is not supported.');
  