E/Volley: [354] BasicNetwork.performRequest: Unexpected response code 404 for Login functionality in Android

I'm trying to create an HTTP request using volley in Android for the login functionality and I'm still getting this error and I tried different solutions like changing getHeaders in different ways (solutions that I found here in other similar topics) but none worked for me. Any suggestions? I'm using MVP with Interactor.

This is my LoginActivity

public class LoginActivity extends AppCompatActivity implements Contract.LoginView {
private LoginPresenter loginPresenter;
TextInputEditText usernameInput, passwordInput;
Button loginBtn;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_login);
    loginPresenter = new LoginPresenter(this, this);
    usernameInput = findViewById(R.id.textInputUsername);
    passwordInput = findViewById(R.id.textInputPassword);
    loginBtn = findViewById(R.id.buttonLogin);

    loginBtn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            String username = usernameInput.getText().toString().trim();
            String password = passwordInput.getText().toString().trim();

            LoginModel loginModel = new LoginModel(username, password);
            loginPresenter.start(loginModel);
        }
    });
}

@Override
public void onSuccesView() {
    Toast.makeText(this, R.string.loginSuccessfully, Toast.LENGTH_SHORT).show();
}

@Override
public void onFailedView(String message) {
    Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
}

}

This is the LoginInteractor.java

public class LoginInteractor {

private Contract.LoginListener loginListener;
LoginPresenter loginPresenter;

public LoginInteractor(LoginPresenter loginPresenter) {
    this.loginPresenter = loginPresenter;
}

public void loginPostRequest(final LoginModel loginModel) {
    RequestQueue requestQueue = Volley.newRequestQueue(loginPresenter.getLoginActivityContext());
    final String urlLogin = "https://ancient-earth-13943.herokuapp.com/api/users/login";
    StringRequest loginStringRequest = new StringRequest(Request.Method.POST, urlLogin, new Response.Listener<String>() {
        @Override
        public void onResponse(String loginResponse) {
            Log.i("LOGINTAG", "Response " + loginResponse.toString());
            parseJsonResponseLogin(loginResponse);
        }
    }, new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
            Log.i("LOGINTAG ", "Error: " + error.networkResponse.statusCode);
        }
    })
    {
        @Override
        protected Map<String, String> getParams() throws AuthFailureError {
            Map<String, String> loginParams = new HashMap<String, String>();
            loginParams.put("email", loginModel.getUsername());
            loginParams.put("password", loginModel.getPassword());
            return loginParams;
        }

        @Override
        public Map<String, String> getHeaders() throws AuthFailureError {
            Map<String, String> pars = new HashMap<String, String>();
            pars.put("Content-Type", "application/x-www-form-urlencoded");
            return pars;
        }
    };
    requestQueue.add(loginStringRequest);
}

public void parseJsonResponseLogin(String jsonStr){
    JSONObject jsonObject = null;
    try {
        jsonObject = new JSONObject(jsonStr);
        if(jsonObject.getString("success").equals("true")){
            jsonObject.getString("token");
            Toast.makeText(loginPresenter.getLoginActivityContext(), "SUCCESS!!", Toast.LENGTH_SHORT).show();
        }
    } catch (JSONException e) {
        Toast.makeText(loginPresenter.getLoginActivityContext(), "FAILED!!", Toast.LENGTH_SHORT).show();
    }
}

}

This is my LoginPresenter.java

public class LoginPresenter implements Contract.LoginListener {

private Contract.LoginView loginView;
private LoginInteractor loginInteractor = new LoginInteractor(this);
private Context loginActivityContext;
public LoginPresenter(Contract.LoginView lw, Context c) {
    this.loginView = lw;
    this.loginActivityContext = c;
}

public void start(LoginModel loginModel) {
    login(loginModel);
}

public void login(LoginModel loginModel) {
    if (checkLoginError(loginModel)) {
        return;
    }
        loginInteractor.loginPostRequest(loginModel);

}

@Override
public void onSucces() {
    loginView.onSuccesView();
}

@Override
public void onFailed(String message) {
    loginView.onFailedView(message);
}

public Context getLoginActivityContext() {
    return loginActivityContext;
}

private boolean checkLoginError(LoginModel loginModel) {
    String username = loginModel.getUsername();
    String password = loginModel.getPassword();

    if (TextUtils.isEmpty(username) || !Patterns.EMAIL_ADDRESS.matcher(username).matches()) {
        loginView.onFailedView("The username is empty or the email is invalid");
        return true;
    }

    if (TextUtils.isEmpty(password) || password.length() < 2) {
        loginView.onFailedView("The password must have at least 6 characters!");
        return true;
    }
    return false;
}

}

My browsers shows in console log this url (https://ancient-earth-13943.herokuapp.com/api/users/login) as not found(404). I think your code is correct. The problem is from server side.