Rob

Steven thanks for your help…
Next I will look in the permission of this file

I have checked the permission of this file, it stated (No name)
You do not have permission to view or edit this object’s permission settings.
I try to change the persmission don’t works with I get the same answer.
You do not have permission to view or edit this object’s permission settings.

I Use Windows 10 file explore copy and also use total commander copy.
Error: cannot read w:\WordPress\wp-content\plugins\syno_ps_tinymce\scripts\ext-3.4\ux\ux-all.css