1. She used "death" 3 times in her message as a way to exaggerate that she was tired from working so hard on the album and she wanna to get this "wrapped" up as quickly as she can.
2. Do you even know fluent Japanese? No? Then don't assume that her album is called that just because "DEATH" was on the message.
3. Why would it be called DEATH in the first place? Think before you assume. It wouldn't make sense at all. She has so many love songs in this upcoming album, so why would it be called DEATH?