getSerialiazableExtra is deprecated thats why I tried new methos with clazz but I think it causes this can you help me? there are 3 pages code

its mainactivty

class MainActivity : AppCompatActivity() {
    private lateinit var binding: ActivityMainBinding
    private lateinit var landmarkList: ArrayList<LandMark>
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        binding = ActivityMainBinding.inflate(layoutInflater)
        val view = binding.root
        setContentView(view)
        landmarkList = ArrayList<LandMark>()


        //Data
        val pisa = LandMark("Pisa", "Italy", R.drawable.pisa)
        val colosseum = LandMark("Colosseum", "Italy", R.drawable.kolezyum)
        val eiffel = LandMark("Eiffel", "France", R.drawable.eiffel)
        val londonBridge = LandMark("London Bridge", "UK", R.drawable.bridge)

        landmarkList.add(pisa)
        landmarkList.add(colosseum)
        landmarkList.add(eiffel)
        landmarkList.add(londonBridge)

        //Adapter : Layout && Data
        //Mapping
        val adapter = ArrayAdapter(this, android.R.layout.simple_list_item_1, landmarkList.map { landMark -> landMark.name })
        binding.listView.adapter = adapter

        binding.listView.onItemClickListener = AdapterView.OnItemClickListener { parent, view, position, id ->
            val intent = Intent(this,DetailsActivity::class.java)
            intent.putExtra("landmarkName",landmarkList.get(position).name)
            startActivity(intent)

        }


    }
}

its landmark class

package com.example.landmarkbookkotlin

import java.io.Serializable

class LandMark (val name:String,val country:String,val image:Int) :Serializable{


}

its detailsactivity

class DetailsActivity : AppCompatActivity() {
    private lateinit var binding: ActivityDetailsBinding

    @RequiresApi(Build.VERSION_CODES.TIRAMISU)
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        binding = ActivityDetailsBinding.inflate(layoutInflater)
        val view = binding.root
        setContentView(view)

        val intent = intent
        //casting
        val selectedLandMark = intent.getSerializableExtra("landmark") as LandMark
        binding.LandMarkName.text = selectedLandMark.name
        binding.LandMarkCountry.text = selectedLandMark.country
        binding.imageView.setImageResource(selectedLandMark.image)


    }
}

it should show other activity when I click listwiew but it crassesMainactivity with listview