error when updating the 10.1.4

The permissions and/or ownership of your sites/default directory or that file itself mean that the file cannot be updated.

What you need to do depends on how your system is configured; there is a guide with more information at https://www.drupal.org/docs/administering-a-drupal-site/security-in-drup... →

update is done even there was this error, do I still need to do something ?

@freelylw This has been asked so many times, in many versions of Drupal. I encourage investing some effort in searching before opening an issue.