Scroll not working on mobile page

Hi,

I’m making a theme based on WordPress Bootstrap, and it’s still a work in progress, but one thing is making me pull out my hairs – my frontpage has an iPhone 5s webpage-style of being scrollable – hard to explain, you’ll see when you visit the site.
The thing is, when I open the page on my phone, the scrollbar doesn’t show, so the bottom of the content is never displayed. I can’t seem to even find out which direction I should look. I thought I added all the necessary css to make it scrollable. This page is by far the most complicated I ever made – I have not chosen the design myself, I was just asked to code it.
Here’s the page – the problem is on the front page, the lower part. Any hint towards what I’m doing wrong is appreciated – I’m really not used to coding responsive stuff.
https://romowind.com/testside