Android: Wikitude causing app crashes onPause

[robwebdev]

With version 8.0.0 of this plugin, sending the app to the background with the wikitude architect world loaded can cause my app to crash with the following stack trace:

E/AndroidRuntime: FATAL EXCEPTION: main
                  Process: com.skyjacker, PID: 4887
                  java.lang.NullPointerException: Attempt to invoke virtual method 'void com.wikitude.phonegap.WikitudePlugin$ArchitectViewPhoneGap.onPause()' on a null object reference
                      at com.wikitude.phonegap.WikitudePlugin$3.run(WikitudePlugin.java:316)
                      at android.os.Handler.handleCallback(Handler.java:739)
                      at android.os.Handler.dispatchMessage(Handler.java:95)
                      at android.os.Looper.loop(Looper.java:152)
                      at android.app.ActivityThread.main(ActivityThread.java:5497)
                      at java.lang.reflect.Method.invoke(Native Method)
                      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

[alexbendl]

I was unable to reproduce this crash with the wikitude cordova example app.
There is however a dangerous piece of code in the plugin that seems to be responsible for this crash. Could you add a snippet of how you use the plugin for us to understand how it was caused in your case?