Web73 is currently down while we investigate some filesystem errors. We’ll update the post as soon as we have more information.
Update (12.40pm GMT): The filesystem on the server is corrupted beyond recovery so we’re going to do an OS reload and restore the data from backup. We’ll update this post with our progress.
Update (3.30pm GMT): We have now moved the server onto new hardware (in case the filesystem errors were hardware-related) and we have started copying all the data from backup.
Update (5.30pm GMT): The server is now back up with new hardware and the data from yesterday’s backup. Note that the RSA host key has changed so your SSH client may display a warning about it.