Livna releases missing: Fedora 18, 19, 20, 21

Greetings, folks. This is an issue with Livna, but I'm raising it here as per the support instructions at http://rpm.livna.org/ . http://rpm.livna.org/repo/ seems to be missing releases for recent Fedoras. The most recent one I see is Fedora 17. Can anyone direct me to the proper route to have this addressed? I didn't notice this problem until one or two weeks ago; I'm fairly sure that the now-missing directories had existed until then. This is what I'm seeing: # yum --disablerepo="*" --enablerepo=livna update Loaded plugins: langpacks http://rpm.livna.org/repo/21/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found Trying other mirror. No packages marked for update $ wget http://rpm.livna.org/repo/21/x86_64/repodata/repomd.xml --2015-02-03 08:57:59-- http://rpm.livna.org/repo/21/x86_64/repodata/repomd.xml Resolving rpm.livna.org (rpm.livna.org)... 193.28.235.40 Connecting to rpm.livna.org (rpm.livna.org)|193.28.235.40|:80... connected. HTTP request sent, awaiting response... 404 Not Found 2015-02-03 08:57:59 ERROR 404: Not Found. $ wget http://rpm.livna.org/repo/17/x86_64/repodata/repomd.xml --2015-02-03 08:58:05-- http://rpm.livna.org/repo/17/x86_64/repodata/repomd.xml Resolving rpm.livna.org (rpm.livna.org)... 193.28.235.40 Connecting to rpm.livna.org (rpm.livna.org)|193.28.235.40|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 3678 (3.6K) [text/xml] Saving to: ‘repomd.xml’ repomd.xml 100%[=====================>] 3.59K --.-KB/s in 0.001s 2015-02-03 08:58:05 (4.88 MB/s) - ‘repomd.xml’ saved [3678/3678]