On every page except the start page a line appears and I do not know where it comes from. It is not intended and disturbing.
Enclosed I send you an example from the blog page (news page).
The line appeared when I added widgets to the sidebar. I thought that this comes from the sidebar and I have removed the widgets again. But still this line is preserved.
Please help…
![Example](https://metaphix.ch/wp-content/uploads/2019/10/2019-10-09-12_52_57-Window.png)