I assume that's Maria-sama ga Miteru but I can't read it that clearly either.
And yesh, animation errors. There was another one this past episode with Yukirin's
hair turning into the
color of her clothes for one frame. And they never did fix Nagisa's sleeve for the Blu-Rays (if you don't know what I'm talking about, episode 5 at the very beginning, when she wakes up and is stretching. Watch the colors). Nor did they fix the script error in episode 12. *shrug* Alas...