ehm the newest version keep on crashing on my phone, do you know how to short it out ?
At the moment of that writing, i tested several newer version of LonaRPG, and none of them worked properly.
Seems like the JoiPlay version in my recommendation either :
1. Can't process custom scripts that newer LonaRPG uses, especially the ones that's been decrypted.
Or
2. Can't process decrypted LonaRPG gamedata in general.
My hypothetical suggestion would be, either encrypt the newer LonaRPG gamedata if you understand the technical know-how, or try the newer JoiPlay, which i haven't and won't (at least in foreseeable future, life's been hectic and i can't risk my favorite eroges to be unplayable) tested yet.
My practical solution would be stick to 0.5.4.0.1 (LonaRPG version that i played till now, and as far as i know, the last version that's using encrypted gamedata), waiting for another whiz kid that for some reason managed to make newer LonaRPG worked in JoiPlay (must be witchcraft), or decipher the complicated and intricate JoiPlay compatibility issues by yourself (if you don't have that much free time, I won't recommend it. Get a/additional romantic and/or sexual partner is much easier in that span of time).
Sorry if it doesn't help you that much.