Thank you for playing! Yeah, I remember when I started working on the command to confirm an action I made it work differently, using "/confirm" instead of just "confirm," which is what actually works in the game. I must have just forgotten to change the text, but it will be fixed very soon! Please consider replaying when the bug is fixed and I hope you enjoyed!
EDIT: Also, you can skip the intro text of the first trial by just typing Y or N immediately!