Why is my 9 year old cat pooping at the entryway of her litterbox?

She used to do this when she was little if her litterbox got too full(understandable), So, i would clean it out every two days and things were fine. Now, for the past week, she's been pooping right outside of it again, no pee at all. I'm perplexed by this. Is she getting that finiky and wants her litterbox cleaned out everyday,lol? Let me add that she does still poop in her litterbox. Thanks