[Vantage] Slider moves down when refreshing

Hi, I have this problem and I don’t know how to solve it.
This is my website: https://www.indusegpe.com/wp/
The slider (which is Meta Slider) is moved down. When I refresh the page it returns to its correct position, but every time I navigate around my site it moves down again and again. I have tried with another slider plugins, but I’ve got the same problem, so I don’t think it is a Meta Slider issue.

Any idea of how can I solve this problem? I’m in a beginner level, by the way.