In the future, instead of taking a picture of the screen try using the PrntScr key to copy the whole screen, or Alt+PrntScr to copy just the current window, then paste it in an image editor, like even Paint.
I have the same problem. I've been searching all the forums and there doesn't seem to be an answer. Loading a new font failed, so I changed it back to the generic font (copying and pasting the original code), and it still fails to load every time. I'm using Text Editor on a Mac to change the css file, that's the only weird thing i can think of.