I installed GRAND FlAGallery plugin. I really like it and it seems like great solution for most of my needs.
However, I encountered one issue which I'm not able to solve.
I created new album and added png images to it. Images are 160x600px, designed for banner.
When I try to add sidebar widget, I got error "Couldn't load the Main XML file.Error #1010". http://i.imgur.com/qXi1dCL.png
This error occurs during development on local machine running XAMPP.