Need help with mods(SAMPI android)

[Veteran newbie]

Hlo, I downloaded sdv from a third party app,a moded version(unlimited money),on Android.After almost completing the game I found the many other mods Sdv has so I downloaded SAMPI Android (ver 3.7.6.7).After first time running the app and clicking on install . It shows an error(scr==null). What should I do?