is she the British Lauren that comes up when you put that in the search function? or maybe is she the English Lauren that comes up?
If you saw her a couple of years ago, (or, looking at your join date, in 2020 onwards) shame you didn't review her when you joined - we would have her details on file and would know for sure whether her AW profile was still active or not. I am assuming you have done a few searches on AW itself using different variations of her name? If she doesn't come up, maybe she has left the industry and doesn't want to be found.