Right Sidebar (Widget Area) Disappears When Click On Post

As the title suggests, the right sidebar widget area disappears when I click on the individual posts. The widget sidebar area appears and works correctly when I’m on the homepage and when I click on different menus. However, upon clicking the post, it disappears altogether and without it, well, it muddles my design up.

How can I make it so the right sidebar permanently stays there no matter what you click on on the website?

I am using the enterprise-lite theme.