Unable to download backup files for hosted site

I went to download backup files for my hosted site just now, and I notice that I am unable to do so.

The link to the most recent backup file goes to the following URL:

http://expats.qa/backups/download/?name=expats_askbot_com-1359418214.tar.gz&time=1359426764

Note the value of the name parameter, which references the old domain name for the site (expats.askbot.com).

When I go to the above URL, I get a 404 error.

I tried changing the name parameter to match the new domain like so:

http://expats.qa/backups/download/?name=expats_qa-1359418214.tar.gz&time=1359426764

But when I do this, I get a 502 Bad Gateway error every time.