message: fix duration undifined value error
diff: @@ -30,8 +30,8 @@ export default function Duration({
  onSubmit,
  }: CustomCellProps) {
  const classes = useStyles();
  - const startDate = value.start?.toDate();
  - const endDate = value.end?.toDate();
  + const startDate = value?.start?.toDate();
  + const endDate = value?.end?.toDate();
  if (!startDate && !endDate) {
  return <></>;
  }
  