You are not using Adelle theme, as I see that you have a customized theme ( https://in-due-time.com/wp-content/themes/induetime/style.css?ver=4.4 ), you are using induetime, a theme may have customized from Adelle (without using child theme).
So you need to look for the person who customize this theme for you, ask him/her to update the core of the theme, as Adelle has been updating and your theme may not been updating.
So when code in older theme has been deprecated, it will not work.
You can however, find a new theme to use if you are not ready to update your theme (the customized one, not Adelle, since you are not using Adelle).