I had it fixed somehow. With the mods still on! I was able to save successfully at the Blighted Village.


https://larian.com/support/faqs/unable-to-save_103


I kind of tried what this post suggested. Each of the steps. I think it's the post since it's the last thing I went to before fixing the issue. I am not sure if this alone helped me but I hope it will help you too.