App crashed with NPE in UploadPresenter due to null object returned by Proxy InvocationHandler

[ashishkumar468]

Summary:
NullPointerException in UploadPresenter due to null object returned by Proxy InvocationHandler

System logs:

java.lang.NullPointerException: Expected to unbox a 'boolean' primitive type but was returned null
at $Proxy3.checkIfLoggedIn(Unknown Source)
at fr.free.nrw.commons.upload.UploadPresenter.handleSubmit(UploadPresenter.java:217)
at fr.free.nrw.commons.upload.UploadActivity.lambda$configureNavigationButtons$19(UploadActivity.java:558)
at fr.free.nrw.commons.upload.-$$Lambda$UploadActivity$EauR4SBocXHTUyMx7qKcuAKpptM.onClick(Unknown Source:2)
at android.view.View.performClick(View.java:6308)
at android.view.View$PerformClick.run(View.java:24949)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6523)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:857)

Device and Android version:
ANDROID_VERSION=8.1.0
BRAND=UMIDIGI
PHONE_MODEL=A3
CUSTOM_DATA=
STACK_TRACE=

Commons app version:

APP_VERSION_NAME=2.10.1-debug-reuploadimg

Would you like to work on the issue?
Yes