If I remember, you need to hide the fancybox overlay with display: none !important within mobile’s media query.
You was right. It was from one of my plugins.
The problem was that I wrote the code using notepad + + and used in encoding utf 8, instead of encoding ut8 – without BOM.
Thanks
Found the solution:
need to chek this option: ‘edit_others_php’ under ‘Custom capabilities’
