IllegalStateException: Can not perform this action after onSaveInstanceState

fragmentTransaction.java

private static void showNewRewardDialog(FragmentActivity fragmentActivity) {
	RewardDialogFragment dialogFragment = RewardDialogFragment.newInstance();
	final FragmentManager fragmentManager = fragmentActivity.getSupportFragmentManager();
	FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
	fragmentTransaction.add(dialogFragment, RewardDialogFragmentKt.FRAGMENT_TAG).commitAllowingStateLoss();
}