No, when adding Firebase data, you should add it together right away, "There's something I've created(?)" And what if I start from there by clicking on what I've created!? I have something I've created, but it doesn't run the same way. It was very... disappointing. We should do it together from the beginning to the end... If I'm using something I just created in the past... I might have deleted it, right? Right, it might not exist!!!!! No, I really have to consider that... I've purchased all of Bokchi's Kotlin lectures, but I have to think about these lectures.......... I'm having a lot of stress because of this problem and I keep creating it again, and it's very 'disappointing' because it happens like this only when I add Firebase data....... If I just added a little bit again and created it, it would be easier to follow, but anyway...... Please explain it a little better...