KotlinNullPointerException

[Cypaubr]

kotlin.KotlinNullPointerException: null
    at com.yalantis.filter.widget.Filter.onSaveInstanceState(Filter.kt:349)
    at android.view.View.dispatchSaveInstanceState(View.java:20183)
    at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:4014)
    at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:4020)
    at android.view.ViewGroup.dispatchSaveInstanceState(ViewGroup.java:4020)
    at android.view.View.saveHierarchyState(View.java:20166)
    at androidx.fragment.app.FragmentManagerImpl.saveFragmentViewState(FragmentManagerImpl.java:2273)
    at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:951)
    at androidx.fragment.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManagerImpl.java:1238)
    at androidx.fragment.app.BackStackRecord.executeOps(BackStackRecord.java:434)
    at androidx.fragment.app.FragmentManagerImpl.executeOps(FragmentManagerImpl.java:2076)
    at androidx.fragment.app.FragmentManagerImpl.executeOpsTogether(FragmentManagerImpl.java:1866)
    at androidx.fragment.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManagerImpl.java:1821)
    at androidx.fragment.app.FragmentManagerImpl.execPendingActions(FragmentManagerImpl.java:1727)
    at androidx.fragment.app.FragmentManagerImpl$2.run(FragmentManagerImpl.java:150)
    at android.os.Handler.handleCallback(Handler.java:873)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:214)
    at android.app.ActivityThread.main(ActivityThread.java:7050)
    at java.lang.reflect.Method.invoke(Method.java)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:965)