How to fill many times a auto suggest field with selenium

I am currently trying to run several test cases on a functionality in a web portal, however a autosuggest field works the first time but it does not work again. I leave evidence.

Thanks for your help.

The URL is http://ift.tt/2lBNczq

The first time it works

The second time does not work, the suggested list does not fire

This is my class Constants:

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.chrome.ChromeOptions;
import org.openqa.selenium.remote.DesiredCapabilities;

public class Constants {

    public static String URL_TARGET = "http://ift.tt/2mvZ8ai";

    public static String LIBRANZA_SIMULATOR_LINK_XPATH = "//*[@id=\"simulador\"]/div/div/div/ul/li[4]/a/div/span";
    public static String LIBRANZA_SIMULATOR_BUSINESS_NAME_ID = "nombreEmpresaSimulador";
    public static String LIBRANZA_SIMULATOR_BUSINESS_NAME_XPATH = "//*[@id=\"nombreEmpresaSimulador\"]";    
    public static String LIBRANZA_SIMULATOR_BUSINESS_UTOSUGGEST_OPTION_XPATH = "//*[@id=\"simulador\"]/div/div/article/div/div/div/div/form/div[2]/div/div/div/ul/li[1]/a";
    public static String LIBRANZA_SIMULATOR_AMOUNT_XPATH = "//*[@id=\"simulador\"]/div/div/article/div/div/div/div/form/div[3]/div[1]/div/span/input";
    public static String LIBRANZA_CREDIT_TERM_LIST_XPATH = "//*[@id=\"simulador\"]/div/div/article/div/div/div/div/form/div[3]/div[2]/select";
    public static String LIBRANZA_INSURANCE_TOGGLE_XPATH = "//*[@id=\"simulador\"]/div/div/article/div/div/div/div/form/div[6]/div[2]/div/div[1]/div/label";
    public static String LIBRANZA_SIMULATION_RESULT_XPATH = "//*[@id=\"resultado\"]/b";

    public static WebDriver getChromeWebDriver()
    {
        System.setProperty(
                "webdriver.chrome.driver", 
                "files/chromedriver.exe"
                );

        ChromeOptions options = new ChromeOptions();
        options.addArguments("window-size=1280,720");
        DesiredCapabilities capabilities = DesiredCapabilities.chrome();
        capabilities.setCapability(ChromeOptions.CAPABILITY, options);
        WebDriver driver = new ChromeDriver(capabilities);

        return driver;
    }

}

This is my class LibranzaSimulatorTest:

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.openqa.selenium.By;
import org.openqa.selenium.Keys;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.Select;
import org.openqa.selenium.support.ui.WebDriverWait;

import Util.Constants;

public class LibranzaSimulatorTest {

    private List<String> testCases;
    private WebDriver chrome;
    private WebElement accessLink;
    private WebElement businessNameField;
    private WebElement businessNameAutosuggestOption;
    private WebElement amountField;
    private Select creditTerm;
    private WebElement insuranceToggle;
    private WebElement simulationResult;

    public LibranzaSimulatorTest() 
    {
        testCases = new ArrayList();                
    }

    public void runTest()
    {
        testCases.add("CP001;A LAUMAYER Y CIA EXPORTADORES DE CAFÉ S.A.;$ 57.499.000;96;SI;$ 1.245.412");
        testCases.add("CP002;A TODA HORA S.A. (ATH);$ 156.000.000;96;No;$ 3.113.142");
        initializeComponents();
        for (Iterator iterator = testCases.iterator(); iterator.hasNext();) {
            String string = (String) iterator.next();
            String[] testCase = string.split(";");
            businessNameField.click();
            businessNameField.clear();          
            businessNameField.sendKeys(testCase[1].toLowerCase(), Keys.ENTER);
            WebDriverWait wait  = new WebDriverWait(chrome, 30);
            businessNameAutosuggestOption = wait.until(ExpectedConditions.elementToBeClickable(By.xpath(Constants.LIBRANZA_SIMULATOR_BUSINESS_UTOSUGGEST_OPTION_XPATH)));
            businessNameAutosuggestOption.click();
            amountField.sendKeys(testCase[2]);
            creditTerm.selectByVisibleText(testCase[3]+" Meses");
            insuranceToggle.click();
            String result = simulationResult.getText();
            System.out.println("resultado: "+result);
        }
    }

    private void initializeComponents()
    {
        chrome = Constants.getChromeWebDriver();
        chrome.get(Constants.URL_TARGET);
        chrome.manage().window().maximize();
        WebDriverWait wait  = new WebDriverWait(chrome, 30);
        accessLink = chrome.findElement(By.xpath(Constants.LIBRANZA_SIMULATOR_LINK_XPATH));
        accessLink.click();     
        businessNameField  = wait.until(ExpectedConditions.elementToBeClickable(By.xpath(Constants.LIBRANZA_SIMULATOR_BUSINESS_NAME_XPATH)));
        amountField = chrome.findElement(By.xpath(Constants.LIBRANZA_SIMULATOR_AMOUNT_XPATH));
        creditTerm = new Select(chrome.findElement(By.xpath(Constants.LIBRANZA_CREDIT_TERM_LIST_XPATH)));
        insuranceToggle = chrome.findElement(By.xpath(Constants.LIBRANZA_INSURANCE_TOGGLE_XPATH));
        simulationResult = chrome.findElement(By.xpath(Constants.LIBRANZA_SIMULATION_RESULT_XPATH));
    }

    public List<String> getTestCases() {
        return testCases;
    }

    public void setTestCases(List<String> testCases) {
        this.testCases = testCases;
    }

}