It’s a new thing Episode released today. I didn’t know it was available and my eyes didn’t see the toggle option to turn it off on the window when I was publishing the chapter this afternoon.
I can’t take it off for chapter 21 because I already published it.
Now I know for next time where the option is so I can turn it off when I publish future chapters.
I don’t want that early access option. And believe me, I’m annoyed lol.
It’s stuck on this 'till this date unless I publish a new chapter which i havent written yet. 
I’m Sorry you have to wait. T_T