Where does the space between two sections on Mobile come from?

Hey guys,

while creating and revising my website I found some errors, which I can’t really solve by myself, so I need your help.

Between my herosection and the following section, when I open the website on my iPhone, there is a big white gap. I have tried a lot to remove it and I just don’t know what the problem is.

Here is my read only link:
https://preview.webflow.com/preview/abrio-2-0?utm_medium=preview_link&utm_source=designer&utm_content=abrio-2-0&preview=514f70c14c615f5ae5ed22cf412f2457&workflow=preview

And here is a screenshot of the problem:

And here is the live page:
https://www.abrio.de/

I would be super happy if someone could help me!