Learnpress aside bug

Hi!

I’m a new user in this page, I was working in a Learnpress site today but I found a bug, I was trying to solve it but when I read some information, I realized this is not a CSS bug (by my side), but this is a responsive bad design bug, for example: https://demo-learnpress.thimpress.com/learnpress/lp-courses/the-ultimate-guide-to-the-best-wordpress-lms-plugin/ (This is not my website but it’s the same bug, you can see it if you resize the window as a “Tablet mode”… as you can see, the sidebar is broken)

I couldn’t solve it by my own, so, I was guessing if someone here has the same problem.