Could it be that there is no apk file in your zip? Can't find it in the folders
So I searched around a bit, because in all honesty the software makes me distribute the game in the android version, but it is not clear on how to use it (I use the windows version) but online I found this explanation that explains how to do it step by step. anyway i take the opportunity to say that from the next update onwards i will put online a browser version so it can be played by everyone without any problem ^_^
https://jstationx.com/how-to-play-rpg-maker-games-on-android/