Hi Marwan, Welcome
Is that wall planar? Wall by Profile is only for planar instances. The other option is a wall by curve, then use a void to cut, similar to this post earlier today..
Here is a short guide on how you can help us help you..
Thanks for the quick reply! I’m afraid it’s not as simple as that. I tried both ways, and they won’t work because it’s not vertical. It’s a bit annoying with different curvatures. I uploaded a screenshot of its side to give you an idea of how annoying my design is, haha. I have been searching for hoursss.