What happened to Nutrawee?
You are probably on this page because you are trying to find a WordPress theme developer who went by the name of Nutrawee. I bet you have one of their themes, and I bet it’s broken (I call it the black screen of death).
Alas, I do not know what happened to the developer, and I do not know how to fix that problem. When my clients had this problem, I ended up moving them to Divi.
If you need help fixing your site, please contact me.