Removing blank space on mobile version of site

On my mobile site of https://thepixelforge.de/ there is a problem, causing the empty area seen in the image. May I ask you guys for help?

Hey @JonasBecker, I've just taken a look on my iPhone and cannot see this whitespace, did you solve the issue? 

When I resized my browser to mobile size I saw a slight bit of whitespace, it looks like you just need to reduce the size of the block containing the copy.