Hermanns Olde Town Grille

Please let me start by saying that I love your food and I've never had a bad meal here - however, I fear food allergies/cross contamination may be an issue. TL;DR - sister has food sensitivity to gluten. First time was amazing; second time, she felt sick after. Please advise servers and cooks to be careful about food allergies/sensitivities and avoid cross-contamination. The long version: The first time my sister and I came here for a girl's night, she wasn't planning to eat because she has celiac disease. (She usually won't eat even if there are gluten free options because she usually encounters cross-contamination and feels sick the next day, and she feels weird asking for them to be careful because gluten sensitivity tends to not be taken seriously). I asked our server about gluten free options because I didn't want my sister to not be able to eat and I was so hungry - our server told us that her boyfriend and several people who work there can't have gluten and that the cooks are really good about this. My sister received her food, it was amazing, mine was also amazing (steak bites), and she felt great the next day! Our server was an absolute doll and took great care of us - I'm struggling to recall her name but think it may have been Jovanna? The second time we went - we didn't have an in-depth convo about gluten with our server like we had the last time, but my sister did request the gluten free menu. It should go without saying that she can't have gluten if she's requested this. The food tasted great, but unfortunately, she felt a bit sick the following day. I'm not trying to slam you guys in the least because we do love your establishment - but please be more careful about this when someone is voicing they have an allergy or sensitivity! My sister said now she's scared again to eat there, and we thought we had found a safe, go-to place. :(