Have you experienced any nightmares? Something terrible happens to you and it seems impossible to recover. When the website you worked on for months is still not working, then you feel it. reason; It is no longer there. Perhaps it was hacked, the server crashed or something else caused your site to disappear into thin air. Now the only thing you can expect is that you have a backup of your site. It can happen to anyone, anytime. Be sensible; Always keep a backup of your site.