Many users crash with io.reactivex.rxjava3.exceptions.OnErrorNotImplementedException

On Google Play console, the Crashes section reports so many crashes after I upgrade to the new version of this lib that support rxjava3. Below is the stack trace:

io.reactivex.rxjava3.exceptions.OnErrorNotImplementedException: at io.reactivex.rxjava3.internal.functions.Functions$OnErrorMissingConsumer.accept (Functions.java:717) at io.reactivex.rxjava3.internal.functions.Functions$OnErrorMissingConsumer.accept (Functions.java:714) at io.reactivex.rxjava3.internal.observers.LambdaObserver.onError (LambdaObserver.java:77) at io.reactivex.rxjava3.internal.observers.LambdaObserver.onNext (LambdaObserver.java:67) at io.reactivex.rxjava3.internal.operators.observable.ObservableFlatMap$MergeObserver.tryEmitScalar (ObservableFlatMap.java:230) at io.reactivex.rxjava3.internal.operators.observable.ObservableFlatMap$MergeObserver.subscribeInner (ObservableFlatMap.java:143) at io.reactivex.rxjava3.internal.operators.observable.ObservableFlatMap$MergeObserver.onNext (ObservableFlatMap.java:136) at io.reactivex.rxjava3.internal.operators.observable.ObservableBuffer$BufferExactObserver.onNext (ObservableBuffer.java:113) at io.reactivex.rxjava3.internal.operators.observable.ObservableFlatMap$MergeObserver.tryEmit (ObservableFlatMap.java:256) at io.reactivex.rxjava3.internal.operators.observable.ObservableFlatMap$InnerObserver.onNext (ObservableFlatMap.java:523) at io.reactivex.rxjava3.observers.SerializedObserver.onNext (SerializedObserver.java:113) at io.reactivex.rxjava3.internal.operators.observable.ObservableConcatMap$SourceObserver$InnerObserver.onNext (ObservableConcatMap.java:250) at io.reactivex.rxjava3.subjects.PublishSubject$PublishDisposable.onNext (PublishSubject.java:310) at io.reactivex.rxjava3.subjects.PublishSubject.onNext (PublishSubject.java:226) at com.tbruyelle.rxpermissions3.RxPermissionsFragment.onRequestPermissionsResult (RxPermissionsFragment.java:69) at com.tbruyelle.rxpermissions3.RxPermissionsFragment.onRequestPermissionsResult (RxPermissionsFragment.java:54) at androidx.fragment.app.FragmentActivity.onRequestPermissionsResult (FragmentActivity.java:768) at android.app.Activity.dispatchRequestPermissionsResult (Activity.java:8474) at android.app.Activity.dispatchActivityResult (Activity.java:8296) at android.app.ActivityThread.deliverResults (ActivityThread.java:5223) at android.app.ActivityThread.handleSendResult (ActivityThread.java:5271) at android.app.servertransaction.ActivityResultItem.execute (ActivityResultItem.java:51) at android.app.servertransaction.TransactionExecutor.executeCallbacks (TransactionExecutor.java:135) at android.app.servertransaction.TransactionExecutor.execute (TransactionExecutor.java:95) at android.app.ActivityThread$H.handleMessage (ActivityThread.java:2216) at android.os.Handler.dispatchMessage (Handler.java:107) at android.os.Looper.loop (Looper.java:237) at android.app.ActivityThread.main (ActivityThread.java:7948) at java.lang.reflect.Method.invoke (Method.java) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:493) at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1075)