Troubleshooting (Android)
There are many many reasons why, it could be your code fault, wrong offsets, bad c++ code, bad layout implementations, game protections etc.
This is very hard to diagnose. Check logcat on Android Studio to see the error logs, open Logcat window from below, and select your device, process and filter to Error. Once you do, you can see the errors in logcat
Error on Java side is really easy to spot, if an the error occured natively, a huge CRASH report will be logged but it can be hard to figure out. You would have to dig deeper and figure out yourself.
If that caused by your hacks, check if your patches and hooks are correct.
If you believe the game has protection, bypass it or drop it!
Problem with the project like app crashes: click More... -> Project -> Refresh Build. This will clear the project cache and fix problems
Problem with AIDE: Open System Settings -> Apps and clear data of AIDE app. This will reset everything and you need to install NDK again
AIDE has a lot of compatibility issues, you need to research a lot and do some trial and errors until you fix something.