404 Error - Files / Domain / DNS seem ok

I checked your account. It’s on vol1_2, which did experience data loss, and a lot of stuff seems to have gone missing there.

As for why restoring the backup didn’t work: please note that rebelation.co.uk was added to your account as an addon domain. That means it should point to a directory rebelation.co.uk/htdocs/, not the main htdocs folder.

You can easily recreate those folders yourself, I went ahead and did that for you. If you upload your website backup to that folder, your website should come up again.