By default, modules assigned to the Left or Right positions are hidden in the single-article view. To restore their visibility, include the following custom CSS in your template’s stylesheet or Custom Code field:

@media screen and (min-width: 768px) {
.view-article #sp-main-body .col-md-9 { width: 75%; }
.item.item-page .entry-header {padding: 70px 90px 55px;}
.blog-details-content .blog-content-wrap {padding: 25px 90px 55px;}
}
.view-article #sp-left, .view-article #sp-right {display: block;}

To use custom CSS, you should use one of the methods give below:

• In NewsKit template settings (System > Site Template Styles > shaper_newskit - Default > Custom CSS) 
  OR
• Inside the custom.css file which must be created inside the /css/ folder of template.