Please turn on your board temporarily so I can get a test reading on that style from googletech. This will tell us what files are missing and/or corrupted.
I turned them all on. So the box at the bottom will allow you to switch them
I am still getting the dark style.... In Style and Language settings do you have it set for users allowed to change styles? I am going directly to the link for the test style, since the skin chooser dropdown is not working.
You can see it all since you're admin, visitors can't so you need to change permission in Style and Language settings.
Also in your attachment it shows you made the "test1" style a child of the "test" style. We need a master style created with no parent and no child in order so have hope to see what is going on.