Hi
1/ Hero slideshow:
It's due to your custom css code which forces the height value:
.owl-carousel.owl-drag .owl-item {
height: 510px !important;
}
in this file: /templates/ja_helple/local/css/custom.css
2/ Module on programie page:
As I can see you add a new css class: camp-slide which is defined with absolute position so it covers the below part.
.camp-slide {
position: absolute;
width: 100%;
}
Kindly check this class again.