I tried several times but cannot add a picture in my page header. (I mean site not post/single page).
I use proper size which customizer advise to me – 940x250px, it seems as the picture is adding but then i get only white screen.
Only way i can make header looking like i want is to set header background, and so i did.
I have edited wp.config file in my wordpress folder on ftp.
And tried once again, unfourtunately didnt help. Look like this ->
You think i should call my server host?