She's asking for the single letters from the four ending riddles in each of her sets, and she's dropping a big hint on what they spell out
I figured TYSM
But, I can't really go back, so I guess I forgot haha
v0.11 gives you one reset opportunity, otherwise, you can load a save, start a temporary one for that express purpose, or just check the Discord's Help section if you're on that, it's got pins specifically for Kate's riddles
