You might need to start at the beginning again and retrain her. I have to do that with my lil GiGi (boy, terriers get spoiled sooooooo fast...lol) because she figures she's such a little princess that she can potty ANY place SHE decides. I thought she would rebel against being in her crate when it's not bedtime, but she is doing so wonderful so far, first day but it looks so promising.
Here is a link that might help if you want to give it a try. It's in PDF format, I got the link in the "training" section of YT. Best Wishes!
How to Housebreak Your Dog in 7 Days