Revolution Slider space above and below on WPLMS theme

I am facing problems with revolution slider  in the WPLMS theme. I searched for an answer on revolution slider themeforest comments (since I can't get full support because I don't have a purchasing code) and they said that this is not a revolution slider problem but must be a theme problem. I made a fresh copy of WPLMS just to be sure that there are no further changes. I create a new page and added a revolution slider using visual composer. The problem is that I am getting space above and below the revolution slider. I have made no changes on the box model. I noticed that the source of the problem is a div with class names "no content" . I couldn't managed to make it go away with custom css. Then I created another new page and I noticed that the specific div("no content") is there before creating anything. It is there in every new empty page. How can I solve this problem?