Hi, I'm an amateur here. For a few weeks now, I've been creating an app in App Inventor as a final project for a class (I'm using App Inventor because my teacher asked us to work with it, even though no one in the class knew how to work with it). I have a problem. I want to save an image as a profile picture using the KIO4_Base64 extension. As you can see in the images, I'm using Firebase as a database, but I can't use the "Storage" tool (because I have to pay to use it). As you can see in the database, in the section where the image is saved, I get a string that is the Base64-encoded image (I'd like to believe), but when I try to decode it, it doesn't appear and gives me the error shown in the image.
I don't know what to do. I'm self-taught when learning how to use App Inventor and Firebase. My teacher asked us to work with these platforms, but he didn't teach us how to use them (he just asks us to review the app in each class). It would be very helpful if you could explain what I'm doing wrong (sorry for any grammatical or spelling mistakes; English is not my first language).
