ошибкa при запуске теста через appium! POST /wd/hub/session 500 3121 ms - 873

Установила appium через cmd npm install -g appium Потом написала в cmd appium и вот запустила данный тест.После запуска теста в консоле появилась ошибка POST /wd/hub/session 500 3121 ms - 873

public class MobileWebTest {
@Test
public void incorectLogin() throws MalformedURLException {
    URL serverUrl=new URL("http://127.0.0.1:4723/wd/hub");
    DesiredCapabilities desiredCapabilities=new DesiredCapabilities();//nastraivaet WebDriver
    desiredCapabilities.setCapability(MobileCapabilityType.PLATFORM_NAME,"ios");
    desiredCapabilities.setCapability(MobileCapabilityType.PLATFORM_VERSION,"10.3");
    desiredCapabilities.setCapability(MobileCapabilityType.DEVICE_NAME,"iphone6");
    desiredCapabilities.setCapability(MobileCapabilityType.BROWSER_NAME,"Safari");
    desiredCapabilities.setCapability(MobileCapabilityType.FULL_RESET,true);//testi ne budut zavisiti drug o druga i budut perezapuscatisea
    AppiumDriver driver=new IOSDriver(serverUrl,desiredCapabilities);
    WebDriverWait wait=new WebDriverWait(driver,30);
    driver.get("https://twitter.com/twitter");
    driver.findElement(By.xpath("/html[1]/body[1]/div[1]/div[1]/div[1]/div[1]/div[1]/div[1]/div[1]/div[1]/div[1]/div[1]/div[1]/div[1]/div[2]/a[1]/div[1]/span[1]/span[1]")).click();
    driver.findElement(By.xpath("//body/div[@id='react-root']/div[1]/div[1]/div[2]/main[1]/div[1]/div[1]/div[1]/div[2]/div[2]/div[1]/div[2]/label[1]/div[1]/div[2]/div[1]/input[1]")).sendKeys("TEST1");
    driver.findElement(By.xpath("//*[@id=\"react-root\"]/div/div/div[2]/main/div/div/div/div[2]/div[2]/div/div[3]/label/div/div[2]/div/input")).sendKeys("326529652");
    driver.findElement(By.xpath("//*[@id=\"react-root\"]/div/div/div[2]/main/div/div/div/div[2]/div[1]/div/div/div/div[3]/div/div/span/span")).click();


}

}

Пожалуйста, подскажите в чем может быть проблема