I cant call activity function from fragment in android studio - android-studio

Question

I have two scripts
Activity:
public class HomeActivity extends AppCompatActivity {
public void Init()
{
//Do something
}
}
Fragment:
public class HomeFragment extends Fragment {
private FragmentHomeBinding binding;
#Override
public View onCreateView(#NonNull LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
HomeViewModel homeViewModel =
new ViewModelProvider(this).get(HomeViewModel.class);
binding = FragmentHomeBinding.inflate(inflater, container, false);
View root = binding.getRoot();
HomeActitvity homeActitvity = new HomeActivity()
homeActivity.Init()
return root;
}
}
When I run app I get this errors and app closes, but when I comment homeActivity.Init() app opens
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.limeinc.dabloonsbank/com.package.name.MainActivity}: java.lang.IllegalStateException
Binary XML file line #21 in com.package.name:layout/activity_main: Error inflating class fragment
this is activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingTop="?attr/actionBarSize">
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/nav_view"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="0dp"
android:layout_marginEnd="0dp"
android:background="?android:attr/windowBackground"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:menu="#menu/bottom_nav_menu" />
<fragment //this is 21 line
android:id="#+id/nav_host_fragment_activity_main"
android:name="androidx.navigation.fragment.NavHostFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:defaultNavHost="true"
app:layout_constraintBottom_toTopOf="#id/nav_view"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:navGraph="#navigation/mobile_navigation" />
</androidx.constraintlayout.widget.ConstraintLayout>
I am using navigation bar template by android studio
I cant find solution in the internet, because they just dont work