Error Kanji

2020-11-04 10:50:57.910 16457-16457/? E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.starnestkanji, PID: 16457
    l.a.a.e: Subscriber class com.starnestkanji.MainActivity and its super classes have no public methods with the @Subscribe annotation
        at com.facebook.login.LoginManager$e.f1(SourceFile:13)
        at com.starnestkanji.MainActivity.onStart(Unknown Source:3)
        at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1433)
        at android.app.Activity.performStart(Activity.java:7986)
        at android.app.ActivityThread.handleStartActivity(ActivityThread.java:3677)
        at android.app.servertransaction.TransactionExecutor.performLifecycleSequence(TransactionExecutor.java:221)
        at android.app.servertransaction.TransactionExecutor.cycleToPath(TransactionExecutor.java:201)
        at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:173)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2267)
        at android.os.Handler.dispatchMessage(Handler.java:107)
        at android.os.Looper.loop(Looper.java:237)
        at android.app.ActivityThread.main(ActivityThread.java:8167)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:496)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1100)