My list says "Your list is empty!" when I try to save it

I made it a while ago and went back to add some new stuff. I alphabetized it and added a bunch of games, but can't save it. It says my list is empty and wont save. The original list remains. Ideas?

Disregard this. I am stupid.

EDIT: Wait! I'm still stupid, but now it's saying something has gone horribly wrong and isn't saving my list.

Originally, I was just typing the titles in the top text area and not adding them to the list. Now that I've added all the games to the list, it still wont save and says something went wrong.