04-16 18:54:52.011 7375-8825/? E/AndroidRuntime: FATAL EXCEPTION: BackgroundThread #27
    Process: com.teamy, PID: 7375
    io.reactivex.exceptions.OnErrorNotImplementedException: Attempt to invoke virtual method 'boolean android.graphics.Bitmap.compress(android.graphics.Bitmap$CompressFormat, int, java.io.OutputStream)' on a null object reference
        at io.reactivex.internal.functions.Functions$OnErrorMissingConsumer.accept(Functions.java:704)
        at io.reactivex.internal.functions.Functions$OnErrorMissingConsumer.accept(Functions.java:701)
        at io.reactivex.internal.observers.LambdaObserver.onError(LambdaObserver.java:77)
        at io.reactivex.internal.operators.observable.ObservableSubscribeOn$SubscribeOnObserver.onError(ObservableSubscribeOn.java:63)
        at io.reactivex.internal.operators.observable.ObservableCreate$CreateEmitter.tryOnError(ObservableCreate.java:85)
        at io.reactivex.internal.operators.observable.ObservableCreate$CreateEmitter.onError(ObservableCreate.java:73)
        at io.reactivex.internal.operators.observable.ObservableCreate.subscribeActual(ObservableCreate.java:43)
        at io.reactivex.Observable.subscribe(Observable.java:10910)
        at io.reactivex.internal.operators.observable.ObservableSubscribeOn$SubscribeTask.run(ObservableSubscribeOn.java:96)
        at io.reactivex.internal.schedulers.ExecutorScheduler$ExecutorWorker$BooleanRunnable.run(ExecutorScheduler.java:260)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:428)
        at java.util.concurrent.FutureTask.run(FutureTask.java:237)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:272)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
        at java.lang.Thread.run(Thread.java:761)
     Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.graphics.Bitmap.compress(android.graphics.Bitmap$CompressFormat, int, java.io.OutputStream)' on a null object reference
        at com.teamy.device.utils.BitmapBase64Utils.encode(BitmapBase64Utils.java:25)
        at com.teamy.device.utils.BitmapBase64Utils.encode(BitmapBase64Utils.java:19)
        at com.teamy.data.network.chat.ChatServiceImpl.lambda$null$8$ChatServiceImpl(ChatServiceImpl.java:169)
        at com.teamy.data.network.chat.ChatServiceImpl$$Lambda$12.run(Unknown Source)
        at com.teamy.device.utils.BackgroundUtils.lambda$runInBackground$0$BackgroundUtils(BackgroundUtils.java:26)
        at com.teamy.device.utils.BackgroundUtils$$Lambda$0.subscribe(Unknown Source)
        at io.reactivex.internal.operators.observable.ObservableCreate.subscribeActual(ObservableCreate.java:40)
        at io.reactivex.Observable.subscribe(Observable.java:10910)
        at io.reactivex.internal.operators.observable.ObservableSubscribeOn$SubscribeTask.run(ObservableSubscribeOn.java:96)
        at io.reactivex.internal.schedulers.ExecutorScheduler$ExecutorWorker$BooleanRunnable.run(ExecutorScheduler.java:260)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:428)
        at java.util.concurrent.FutureTask.run(FutureTask.java:237)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:272)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
        at java.lang.Thread.run(Thread.java:761)
04-16 18:54:53.371 1554-5788/? E/ActivityManager: Found activity ActivityRecord{dd58f70 u0 com.teamy/.view.activity.main.MainActivity_ t107 f} in proc activity list using null instead of expected ProcessRecord{d1dce5 7375:com.teamy/u0a177}
04-16 18:54:53.424 1554-4132/? E/InputDispatcher: channel 'c7c2c2a com.teamy/com.teamy.view.activity.main.MainActivity_ (server)' ~ Channel is unrecoverably broken and will be disposed!