I am really new to Otree and coding in general and I was trying to practice publishing the app I created to test collect data and I didn't realize that I could only publish it so many times. As a result, I have now seen that I ran out of registration keys. I truly did not know what this would mean until it happened. Is there a way that I can get another registration key so that I can publish my app? Or how do I get another registration key? Thanks!