We have a similar problem. That is, in our blog we have the plugin FIAGallery v. 4.28, but now we no longer see the default skin (minima_jn) located in dir wp-content / plugins / flagallery-skins / minima_jn and Chmod “flagallery-skins” folder to 755. However, a bit ‘of time gallery is not shown if not as a sequence of images (see http://www.mywhere.it/asvoff-7/). Why? The version of wordpress is 4.1. And what can we do to restore the display with the default skin?