How to adapt the header width for mobiles?

Hello @kristian ,
thanks again for your help!
I have tried, the matter is inside the info boxes, removing them the report is fine without error. I will try to remove that tag and see if it has still the problem.

How can I avoid that the header Is cut (not the background, I mean the image on the top)?

Mmmh I need to find a solution, if really dropbox is not possible to use…