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Hello
I wanted to display the respective subsection at the top of the header, which also worked. However, I now have the problem that when a page starts with a section, there is simply nothing at the top. Is there a way to display the section there in this case?

So far I have used:
\usepackage ...

That worked perfectly fine many thanks!

Hello!
I have a problem regarding the gaps in my text after a figure. I don't know how to get rid of this gap directly after it.

Thanks that worked!

Why does it say "Empty Bibliography"?