After handling Alert and waits,The page is not loading and cannot locate elements. (in Selenium)

Question

After handling Alert and waits(popup at runtime,)The page is not loading which is why cannot locate elements. (in Selenium)getting no such element: Unable to locate element:

''''public class ApplicantLoginPageTest extends TestBase{

  @Test
    public void init() throws Exception { 
      
     
    ApplicantLoginPage applicantLoginPage = PageFactory.initElements(driver, ApplicantLoginPage.class);
    
      applicantLoginPage.getApp(prop.getProperty("urlapp"));
      Thread.sleep(3000);
      
      applicantLoginPage.login(prop.getProperty("un"));
      Thread.sleep(3000);
            
      applicantLoginPage.instruct1();
      Thread.sleep(3000);
      
      applicantLoginPage.TestClick();
      try {
            WebDriverWait wait = new WebDriverWait(driver, 2);
            wait.until(ExpectedConditions.alertIsPresent());
            Alert alert = driver.switchTo().alert();
            alert.accept();
            driver.switchTo().defaultContent();
        } catch (Exception e) {
        }
         applicantLoginPage.TestCamera();
        Thread.sleep(15000);
        applicantLoginPage.PreviewRecord();
        Thread.sleep(15000);
        applicantLoginPage.instruct2();
        Thread.sleep(3000);
    }
}''''

Answer 1

remove the following statement, and try again:

driver.switchTo().defaultContent();