10-12 11:21:44.647 E/AndroidRuntime(4871): FATAL EXCEPTION: main
10-12 11:21:44.647 E/AndroidRuntime(4871): Process: com.android.settings, PID: 4871
10-12 11:21:44.647 E/AndroidRuntime(4871): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.android.settings/com.android.settings.SubSettings}: java.lang.NullPointerException: Attempt to invoke virtual method 'void androidx.preference.TwoStatePreference.setChecked(boolean)' on a null object reference
10-12 11:21:44.647 E/AndroidRuntime(4871):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3270)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3409)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2016)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at android.os.Handler.dispatchMessage(Handler.java:107)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at android.os.Looper.loop(Looper.java:214)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at android.app.ActivityThread.main(ActivityThread.java:7356)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at java.lang.reflect.Method.invoke(Native Method)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
10-12 11:21:44.647 E/AndroidRuntime(4871): Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void androidx.preference.TwoStatePreference.setChecked(boolean)' on a null object reference
10-12 11:21:44.647 E/AndroidRuntime(4871):  at com.derpquest.settings.fragments.ButtonsSettings.onCreate(ButtonsSettings.java:108)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at androidx.fragment.app.Fragment.performCreate(Fragment.java:2596)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:831)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at androidx.fragment.app.FragmentTransition.addToFirstInLastOut(FragmentTransition.java:1197)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at androidx.fragment.app.FragmentTransition.calculateFragments(FragmentTransition.java:1080)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at androidx.fragment.app.FragmentTransition.startTransitions(FragmentTransition.java:119)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at androidx.fragment.app.FragmentManagerImpl.executeOpsTogether(FragmentManagerImpl.java:1853)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at androidx.fragment.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManagerImpl.java:1811)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at androidx.fragment.app.FragmentManagerImpl.execPendingActions(FragmentManagerImpl.java:1717)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at androidx.fragment.app.FragmentManagerImpl.executePendingTransactions(FragmentManagerImpl.java:183)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at com.android.settings.SettingsActivity.switchToFragment(SettingsActivity.java:567)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at com.android.settings.SettingsActivity.launchSettingFragment(SettingsActivity.java:360)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at com.android.settings.SettingsActivity.onCreate(SettingsActivity.java:268)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at android.app.Activity.performCreate(Activity.java:7801)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at android.app.Activity.performCreate(Activity.java:7790)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1307)
10-12 11:21:44.647 E/AndroidRuntime(4871):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3245)
10-12 11:21:44.647 E/AndroidRuntime(4871):  ... 11 more