godot: Production crashes with GodotPayments on Android

Godot version: 3.2.1

OS/device including version: Android devices

Issue description: We released a game using the godot engine last week and our users experience a lot of crashes, which get reported in the google play interface:

java.lang.NullPointerException: at 
org.godotengine.godot.GodotPaymentV3.setAutoConsume (GodotPaymentV3.java:180) at 
org.godotengine.godot.GodotLib.step (Native Method) at org.godotengine.godot.GodotRenderer.onDrawFrame (GodotRenderer.java:51) at 
android.opengl.GLSurfaceView$GLThread.guardedRun (GLSurfaceView.java:1573) at 
android.opengl.GLSurfaceView$GLThread.run (GLSurfaceView.java:1272) 

I wasn’t able to reproduce this issue myself yet and sadly have no other infos. From the reviews it doesn’t get clear when the crashes are occurring.

Here the code part where the setAutoConsume function is called:

func _ready():
                pause_mode = PAUSE_MODE_PROCESS
                # check for android
                if Engine.has_singleton("GodotPayments"):
                               payment = Engine.get_singleton("GodotPayments")
                               currentMode = modes.Android
                               payment.setAutoConsume(false)
                               print("Using Android IAP")

I implemented an if payment: check before calling setAutoConsume, but why is null anyway?

I also have a lot of crashes with this log:

java.lang.NullPointerException: 
 
  at org.godotengine.godot.GodotPaymentV3.<init> (GodotPaymentV3.java:71)
 
  at org.godotengine.godot.GodotPaymentV3.initialize (GodotPaymentV3.java:63)
 
  at org.godotengine.godot.GodotLib.setup (Native Method)
 
  at org.godotengine.godot.Godot$2.run (Godot.java:325)
 
  at android.opengl.GLSurfaceView$GLThread.guardedRun (GLSurfaceView.java:1502)
 
  at android.opengl.GLSurfaceView$GLThread.run (GLSurfaceView.java:1272)

There is no init function I’m calling in the code, so I can’t implement a check there

Thanks for your support, Tobias La