I am unable to close popup (Find attached screenshot) in the website>> https://www.lambdatest.com/selenium-playground

I tried closing the element by using locators but I got element not interactable error and also I tried with getWindow Handle method but no use. Please help me on this.
Below code used for alert/pop
Thread.sleep(3000); driver.switch().to.alert().dismiss()
Try to use above one.