Well, for now I solved the problem by using a blank image. :)
Hey Andy!
Thank you for the quick reply. It works, technically, but it doesn’t look good. :)
It looks like in the first screenshot, but I want it to look like in the second one (without the Enfold Logo).
That’s how it looks when I remove the code from the functions.php.
Is there any other way to solve the problem?
Greetings from Germany,
Verena