How can I fix the thread interrupted exception?

Question

Android

Hello
I am developing an Android client for Instagram. When implementing a real-time search, I get a thread interrupted exception.
This is a link to the part of the project where the search is implemented
https://github.com/Shokhrukh1/InstaStoryApp/tree/m...
The search is implemented using RxJava and the instagram4Android library
The error crashes in switchMap

class RxSearchObservable {
    companion object {
        fun fromView(searchView: MaterialSearchView): Observable<String> {
            val subject = PublishSubject.create<String>()

            searchView.setOnQueryTextListener(object : MaterialSearchView.OnQueryTextListener {
                override fun onQueryTextSubmit(query: String?): Boolean {
                    subject.onComplete()

                    return true
                }

                override fun onQueryTextChange(newText: String?): Boolean {
                    subject.onNext(newText!!)

                    return true
                }
            })

            return subject
        }
    }
}

class WelcomeActivity : BaseActivity(), WelcomeView, OnItemClickListener<InstagramSearchUsersResultUser> {
    @Inject
    lateinit var presenter: WelcomePresenter
    lateinit var adapter: UserAdapter

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_welcome)

        setSupportActionBar(toolbar)
        initSearchView()
        rvUsers.layoutManager = LinearLayoutManager(this)
        adapter = UserAdapter(this)
        rvUsers.adapter = adapter
    }

    override fun onCreateOptionsMenu(menu: Menu?): Boolean {
        menuInflater.inflate(R.menu.menu, menu)
        searchView.setMenuItem(menu?.findItem(R.id.search))

        return true
    }

    override fun onBackPressed() {
        if (searchView.isSearchOpen) {
            searchView.closeSearch()
        } else {
            super.onBackPressed()
        }
    }

    override fun onItemClick(item: InstagramSearchUsersResultUser) {
        val intent = Intent(this, StoryActivity::class.java)
        intent.putExtra(EXTRA_USER_ID, item.pk)
        startActivity(intent)
    }

    private fun initSearchView() {
        RxSearchObservable.fromView(searchView)
                .debounce(300, TimeUnit.MILLISECONDS)
                .filter {
                    if (it.isEmpty())
                        false
                    else
                        true
                }
                .distinctUntilChanged()
                .switchMap {
                    presenter.searchUser(it)
                }
                .subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe({
                    adapter.users = it.users
                    adapter.notifyDataSetChanged()
                    Log.d("myLogs", "${it.users.size}")
                }, {
                    Log.d("myLogs", it.message)
                })
    }
}

class WelcomePresenterImpl @Inject constructor(view: WelcomeView, val instagram: Instagram4Android) : BasePresenterImpl<WelcomeView>(view), WelcomePresenter {
    override fun searchUser(userName: String): Observable<InstagramSearchUsersResult> {
        return Observable.create<InstagramSearchUsersResult> {
            it.onNext(instagram.sendRequest(InstagramSearchUsersRequest(userName)))
        }
    }
}