Change Home Page Issues

Hello,

I am trying the change the homepage from Default to Minimal and I am having issues with it, following a lot of articles on the internet including this forum the general solution is go to admin/config/system/site-information and then edit Home Page value, but the problem is that when I changed the homepage I got duplicated sliders and non-organized boxes. Basically I don't know how to change that, and I couldn't fin any solution in this forum for this. 

If you need access to my site please let me know.

Thanks.