Screenshot not getting captured , please help

package selenimfile;

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

import org.openqa.selenium.OutputType;
import org.openqa.selenium.TakesScreenshot;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;

public class ScreenshotDemo {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		System.setProperty("webdriver.chrome.driver", "C:\\Users\\GLB-114\\Downloads\\chromedriver.exe" );
		
		WebDriver driver = new ChromeDriver();
		driver.manage().window().maximize();
		driver.manage().timeouts().pageLoadTimeout(50, TimeUnit.SECONDS);		
		driver.get("https://www.lambdatest.com/");
		
		TakesScreenshot sc= (TakesScreenshot)driver;
		File source= sc.getScreenshotAs(OutputType.FILE);
		FileUtils.copyFile(source,  new File("./selenim/screenshot/screen.png"));
		
		System.out.println("screenshot has been taken ");
		driver.close();
	
}

}

Start at the ScreenshotDemo.main entry point shown in the issue and inspect the screenshot capture and file-copy steps. Reproduce the run with the provided ChromeDriver setup; done means the program completes and creates the expected screen.png file.