Kivy App Build With Buildozer. Apk Crash

I am using Oracle VirtualBox running Ubuntu 16. I have been able to build apk files for a while until my latest build. My program will run and keep its functionality when run with

Solution 1:

Turn USB Debuggin mode on in your device and connect your device to your PC and then run adb logcat. Run the application on your device and see what is going on in your application and what is the reason of crashing. you could also show us the the adb logcat result if you couldn't figure out the reason.