We are investigating a problem with some of our web hosting customers with a .co.uk domain seeing a 404 Page not found message. Engineers are investigating this now.
We are restoring missing files from our nightly backup, these should be restored in the next hour or so. We're not sure yet what has caused some websites to be removed. We are still investigating and will update this post shortly.
This looks to have been caused by one of our nightly jobs that tidies web site files of ceased domains. This script looks to have been over zealous! We do apologise.
Missing web sites have been restored. We are aware of what caused this problem - our nightly maintenance scripts, which we will be fixing! Again, we do apologise for this.