Hi there!
I got your sample project, but the crash is not happening at all. I did a lot of testing, including following the thread link you posted(which by the way is a different issue from yours), but I didn't manage to replicate the crash. And also did not manage to show my custom parameter on the status screen. but also, I didn't manage to change the status screen at all. Tried to remove LUK and AGI for example. Removed them from the plugin parameters, but when I opened the status menu, it was there again.
So I will ask for you to give me a sample project replicating the crash, In a way that I just open the status and the crash happens just like you said before. From there, I may have more luck finding the problem.
But as you know, Visustela is obfuscated. So that make everything harder and it also takes more time than usual. Give me the other projet when you can, and I will let you know what I have found out