How do I change browser page when ATUreporter does not take screenshos on failed tests

I failed test intentionally just to see if it takes screenshot, the element password_field can't be located on the webpage,

because I gave it wrong xpath - passwordqqq(look up comment in the code below)

when test fails it must take screenshot, but it does not,

so I want to change browser page using setCaptureScreen method, how to call it?

I looked up the api here, but it s poorly documented.

    package erjan.testNG.personal_cabinet_login;

//import java.io.File;
import java.io.IOException;
import java.util.concurrent.TimeUnit;

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
//import org.openqa.selenium.firefox.FirefoxBinary;
import org.openqa.selenium.firefox.FirefoxDriver;
//import org.openqa.selenium.firefox.FirefoxProfile;

import org.testng.Assert;
import org.testng.annotations.Listeners;
import org.testng.annotations.Test;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.AfterMethod;

import atu.testng.reports.ATUReports;
import atu.testng.reports.utils.Utils;
import atu.testng.reports.listeners.ATUReportsListener;
import atu.testng.reports.listeners.ConfigurationListener;
import atu.testng.reports.listeners.MethodListener;
import atu.testng.reports.logging.LogAs;
import atu.testng.selenium.reports.CaptureScreen;
import atu.testng.selenium.reports.CaptureScreen.ScreenshotOf;

@Listeners({ ATUReportsListener.class, ConfigurationListener.class,
MethodListener.class })

public class Login_test_no_user {

    {
        System.setProperty("atu.properties", 
 "C:\\Users\\www\\ERJAN_NAIMIKZ_ALL\\erjan_2_naimikz_test\\ATUReporter_Selenium_testNG_5.5 BETA");
    }

    WebDriver firefox ;
  @Test
  public void main() {
      setAuthorInfoForReports();
      setIndexPageDescription();

      WebElement phone_field = null ;
      WebElement password_field = null ;

      //setCaptureScreenBrowserpage

      ATUReports.add("checking phone, password fields are displayed", "--", "--", "--", LogAs.INFO,null);

      try{
       phone_field= firefox.findElement(By.xpath("//*[@id=\"login-form\"]/div[1]/span/input"));
//I FAILED THE TEST HERE,  the element password_field can't be located on the webpage, because I gave it wrong xpath - passwordqqq
/when test fails it must take screenshot, but it does not
           password_field= firefox.findElement(By.xpath("//*[@id=\"login-form\"]/div[2]/span/input[@name=\"passwordqqq\"]"));

      Assert.assertNotNull(phone_field);
      Assert.assertNotNull(password_field);

      Assert.assertTrue(phone_field.isDisplayed());
      Assert.assertTrue(password_field.isDisplayed());
      }
      catch(Exception e){
          ATUReports.add("a field is invisible or not available", LogAs.FAILED, new CaptureScreen(
                  ScreenshotOf.BROWSER_PAGE)); 
      }

      ATUReports.add("phone, password are visible",LogAs.PASSED,null);


      ATUReports.add("inputting number", "0009999999", "--", "--", LogAs.INFO,null);
      phone_field.clear();
      phone_field.sendKeys("0009999999");



      ATUReports.add("inputting password", "bad_password!!!22222", "--", "--", LogAs.INFO,null);
      password_field.clear();
      password_field.sendKeys("bad_password!!!22222");

      ATUReports.add("click LOGIN button", "--", "--", "--", LogAs.INFO,null);
      firefox.findElement(By.cssSelector("input.button.blue")).click();

      String newUrl = firefox.getCurrentUrl();

      ATUReports.add("check URL", "astana/login", "astana/login", "--", LogAs.INFO,null);

      /*
      (java.lang.String stepDescription, 
              java.lang.String inputValue, 
              java.lang.String expectedValue, 
              java.lang.String actualValue, 
              LogAs logAs, CaptureScreen captureScreenshot)*/
      try{
          Assert.assertEquals("http://ift.tt/19BNkbL", newUrl);  
      }catch(Exception e ){
          ATUReports.add("webpages are not same!", LogAs.FAILED, new CaptureScreen(
                  ScreenshotOf.BROWSER_PAGE)); 
      }

      ATUReports.add("page is same",LogAs.PASSED,null);

//  WebDriverWait wait = new WebDriverWait(firefox,3);
//  wait.until(ExpectedConditions.presenceOfElementLocated(By.xpath("//div[@class='error-text']")));
//    WebElement wrong_message = firefox.findElement(By.xpath("//div[@class='error-text']"));

  }

  private void setAuthorInfoForReports() {
       ATUReports.setAuthorInfo("NAIMI.KZ AUTOTEST", Utils.getCurrentTime(),"1.0");
    }

  private void setIndexPageDescription() {
      ATUReports.indexPageDescription = "erjan runs ATUreport";
}


  @BeforeMethod
  public void beforeMethod() throws IOException {     

      firefox = new FirefoxDriver();
      ATUReports.setWebDriver(firefox);


      firefox.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);
      firefox.get("http://ift.tt/19BNkbL"); 

  }

  @AfterMethod
  public void afterMethod() {
      firefox.quit();
  }

}