Hey @Asfand-janjua .
Thanks for reaching out.
Did you happen to make any custom coding changes to your online store theme? Also, would you mind sharing with us which theme you are using for your store? As this information will allow us to assist you better.
If you are unsure about which theme is live on your store, you can navigate to the Theme Editor and select the three dots that are appearing towards the top left of the page. I took a screenshot from my test store to show you the section I am referring to:
Looking forward to your response.