Quando executo o LeiloesSystemTest.java está aparecendo o seguinte log:

org.openqa.selenium.NoSuchElementException:Cannot locate element with text: Paulo Henrique
For documentation on this error, please visit:http://seleniumhq.org/exception/no_such_element.html
Build info: version:'3.5.3', revision:'a88d25fe6b', time:'2017-08-29T12:54:15.039Z'
System info: host: 'QED5782', ip: '10.0.30.6', os.name:'Windows 7', os.arch:'amd64',os.version:'6.1',java.version:'1.8.0_144'
Driver info: driver.version: unknown
at org.openqa.selenium.support.ui.Select.selectByVisibleText(Select.java:151)
at br.com.caelum.teste.NovoLeilaoPage.preenche(NovoLeilaoPage.java:38)
at br.com.caelum.teste.LeiloesSystemText.deveCadastrarUmLeilao(LeiloesSystemText.java:30)

E fica em vermelho a linha abaixo:

novoLeilao.preenche("Geladeira", 123, "Paulo Henrique", true);

Segue abaixo código:

public class LeiloesSystemTest  {

    private WebDriver driver;
    private LeiloesPage leiloes;

    @Before
    public void inicializa() {
        this.driver = new FirefoxDriver();
        leiloes = new LeiloesPage(driver);

        UsuariosPage usuarios = new UsuariosPage(driver);
        usuarios.visita();
        usuarios.novo().cadastro("Paulo Henrique","paulo@henrique.com");
    }

    @Test
    public void deveCadastrarUmLeilao() {

        leiloes.visita();
        NovoLeilaoPage novoLeilao = leiloes.novo();
        novoLeilao.preenche("Geladeira", 123, "Paulo Henrique", true);

        assertTrue(leiloes.existe("Geladeira", 123, "Paulo Henrique", true));

    }

}

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public class NovoLeilaoPage {

    private WebDriver driver;

    public NovoLeilaoPage(WebDriver driver) {
        this.driver = driver;
    }

    public void preenche (String nome, double valor, String usuario, boolean usado) {
        WebElement txtNome = driver.findElement(By.name("leilao.nome"));
        WebElement txtValor = driver.findElement(By.name("leilao.valorInicial"));

        txtNome.sendKeys(nome);

        txtValor.sendKeys(String.valueOf(valor));

        Select cbUsuario = new Select(driver.findElement(By.name("leilao.usuario.id")));

        cbUsuario.selectByVisibleText(usuario);

        if (usado) {
            WebElement ckUsado = driver.findElement(By.name("leilao.usado"));
            ckUsado.click();
        }

        txtNome.submit();
    }

}

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public class LeiloesPage {


        private WebDriver driver;

        public LeiloesPage(WebDriver driver) {
            this.driver = driver;
        }

        public void visita() {
            driver.get("http://localhost:8080/leiloes");
        }

        public NovoLeilaoPage novo() {

            driver.findElement(By.linkText("Novo Leilão")).click();

            return new NovoLeilaoPage(driver);
        }

        public boolean existe(String produto, double valor, String usuario,
                boolean usado) {

            return driver.getPageSource().contains(produto) && 
                    driver.getPageSource().contains(String.valueOf(valor)) &&
                    driver.getPageSource().contains(usado ? "Sim" : "Não");

        }
    }

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O que significa este erro?