kali linux installation problem in virtual box

[fratello]

when i go to import the file downloaded from kali's site it gives me an error like this, how can i fix it? A thousand thanks



https://forums.kali.org/image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAQAAAA ngNWGAAAA/0lEQVR4AYXNMSiEcRyA4cfmGHQbCZIipkuxnJgMStlMNmeyD2d wmc8 sZgxYJd9ErIZFHUyYYD7fkr6l4/rnvmtl7 KitrqV/fq2Y5eLY3Z9S48eRLe7BmVZ9qhTLhQ0algzZWQOVKSsCF8OjAn wbxDTWFDUhPK/jMr1H6HE/IqRky2DyvCefuwItwZzodVoYRiLqMkVCXrwpJ9twZ sgfDYEFYl8wIWxZ9uFf7zkallxlJh4YrLGsKjZRx7VGHhLqwgF UN45DGdb8MeXGpgB4ABZdeDcpZEY51A hyLKz4S1W4MQWm3AibWtgWmk6dyISa1pSdyWTOlLXVp0 eL9D/ZPfBTNanAAAAAElFTkSuQmCC