I don't offer official phone support, sorry. Various people have it running on their phones, but all I can do is help a little by offering the unpacked files. You would be better off asking one of the people in the comments discussing phone play.
Well you can download the latest version of joiplay and rpg maker plugin on their patreon page for free, install both apk and launch joplay, inside you can find the help section explaining how to adding games, rtp, the settings etc