Side Bar Issue

Hello Guys I’m using Tutor LMS on a site. The course page is supposed to display a portion of the content in the right sidebar. I tested and the appropriate content moves to the sidebar.

I did see a brief mention of a similar issue is Tutor LMS’s support, but no solution mentioned.

I already try with this copy and paste this code on my css

.tutor-course-col-auto, .tutor-course-col, .tutor-course-col-3, .tutor-course-col-4, .tutor-course-col-5, .tutor-course-col-6, .tutor-course-col-7, .tutor-course-col-8, .tutor-course-col-9, .tutor-course-col-12 {
box-sizing: border-box;
}

.tutor-col-auto, .tutor-col, .tutor-col-3, .tutor-col-4, .tutor-col-5, .tutor-col-6, .tutor-col-7, .tutor-col-8, .tutor-col-9, .tutor-col-12 {
box-sizing: border-box;
}

But doesnt work, where and what I suposed to do? Help