class PacksFragment : BaseCompatFragment() {

    @Inject
    lateinit var presenter: PacksFragmentPresenter

    override fun onCreateView(
       ...
    }

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        ...
        LibApp.get().injector.inject(this)
        ...

        //Working good
        val userData = ViewModelProviders.of(this).get(UserViewModel::class.java).getData()
        val user = userData.value

        //Correct value logged
        Timber.e(user?.coins.toString())
    }

    fun updateToolbar() {
        Timber.e("Loaded?")

        //"Loaded?" logged, so method called. Next line is reason of Error
        val userData = ViewModelProviders.of(this).get(UserViewModel::class.java).getData()
        presenter.openNewPack(packId)
    }
}

class PacksFragmentPresenter @Inject constructor(
    private val packsFragment: PacksFragment,
    private val getCoinsFromUserCase: GetCoinsFromUserCase
) {

    fun openNewPack(packId: Int) {
        if (getCoinsFromUserCase.getCoinsFromUser()){
            packsFragment.updateToolbar()
        }
    }
}

class GetCoinsFromUserCase {

    fun getCoinsFromUser(): Boolean {
        val userViewModel = UserViewModel()
        userViewModel.takeCoins(10)
        return true
    }
}

class UserViewModel : ViewModel(), UserApi {
    private val data = MutableLiveData<User>()

    fun setData(user: User) {
        //Logged fine
        Timber.e("User setted")
        data.value = user
    }

    fun getData(): LiveData<User> {
        if (data.value == null) {
            val user = User()
            user.coins = 200
            data.value = user
        }
        //Logged fine, "false"
        Timber.e("User getted")
        Timber.e("Is user == null? %s", (data.value == null).toString())
        return data
    }

    override fun takeCoins(value: Int) {
          //Specially commented it
//        getCoins(value)
    }
}