How to save and get in firebase

Hello, how do I save this list? I’m registering, it’s registering in FireAuth but it’s not saving the other information in the Realtime Database what do I do?

  1. Have you verified the email that was sent by Firebase?
  2. What rules are you using for the Realtime Database in your Firebase console?
  3. What is the value of the green error block? You should also display that so you know why something doesn’t work. I usually assign it to a Text Input so that I can copy the error and paste it into a forums post.