Hello,
I have the same error since 1 week. I tried some reboots but it's always the same issue.
Get:36 http://packages.omv-extras.org stoneburner Release [3870 B]
Get:37 http://packages.omv-extras.org stoneburner-vb Release [1670 B]
Get:38 http://packages.omv-extras.org stoneburner-plex Release [2371 B]
Get:39 http://packages.omv-extras.org stoneburner/main i386 Packages [11.9 kB]
Get:40 http://packages.omv-extras.org stoneburner-vb/main i386 Packages [966 B]
Get:41 http://packages.omv-extras.org stoneburner-plex/main i386 Packages [509 B]
Get:42 https://dl.bintray.com wheezy Release.gpg [475 B]
Get:43 https://dl.bintray.com wheezy Release [2130 B]
Get:44 https://dl.bintray.com wheezy/main i386 Packages [1064 B]
Ign http://packages.omv-extras.org stoneburner/main Translation-en
Ign http://packages.omv-extras.org stoneburner-vb/main Translation-en
Ign http://packages.omv-extras.org stoneburner-plex/main Translation-en
Ign https://dl.bintray.com wheezy/main Translation-en
Get:45 http://security.debian.org wheezy/updates Release.gpg [1554 B]
Get:46 http://ppa.launchpad.net precise Release.gpg [316 B]
Get:47 http://security.debian.org squeeze/updates Release.gpg [836 B]
Get:48 http://ppa.launchpad.net precise Release [12.9 kB]
Get:49 http://security.debian.org wheezy/updates Release [102 kB]
Get:50 http://ppa.launchpad.net precise/main i386 Packages [3606 B]
Get:51 http://ppa.launchpad.net precise/main Translation-en [1923 B]
Get:52 http://security.debian.org squeeze/updates Release [86.9 kB]
Get:53 http://security.debian.org wheezy/updates/main Sources [214 kB]
Get:54 http://security.debian.org wheezy/updates/non-free Sources [14 B]
Get:55 http://security.debian.org wheezy/updates/main i386 Packages [343 kB]
Get:56 http://security.debian.org wheezy/updates/non-free i386 Packages [14 B]
Get:57 http://security.debian.org wheezy/updates/main Translation-en [197 kB]
Get:58 http://security.debian.org wheezy/updates/non-free Translation-en [14 B]
Get:59 http://security.debian.org squeeze/updates/main Sources [139 kB]
Get:60 http://security.debian.org squeeze/updates/contrib Sources [14 B]
Get:61 http://security.debian.org squeeze/updates/non-free Sources [14 B]
Get:62 http://security.debian.org squeeze/updates/main i386 Packages [369 kB]
Get:63 http://security.debian.org squeeze/updates/contrib i386 Packages [681 B]
Get:64 http://security.debian.org squeeze/updates/non-free i386 Packages [14 B]
Ign http://security.debian.org squeeze/updates/contrib Translation-en
Ign http://security.debian.org squeeze/updates/main Translation-en
Ign http://security.debian.org squeeze/updates/non-free Translation-en
Get:65 http://apt.syncthing.net syncthing Release.gpg [819 B]
Get:66 http://ftp.fr.debian.org wheezy Release.gpg [2373 B]
Get:67 http://apt.syncthing.net syncthing Release [7964 B]
Get:68 http://ftp.fr.debian.org wheezy-updates Release.gpg [1554 B]
Get:69 http://apt.syncthing.net syncthing/release i386 Packages [1407 B]
Get:70 http://ftp.fr.debian.org wheezy Release [191 kB]
Ign http://apt.syncthing.net syncthing/release Translation-en
Get:71 http://ftp.fr.debian.org wheezy-updates Release [151 kB]
Get:72 http://ftp.fr.debian.org wheezy/main Sources [5982 kB]
Get:73 http://ftp.fr.debian.org wheezy/main i386 Packages [5858 kB]
Err http://packages.openmediavault.org stoneburner Release.gpg
Something wicked happened resolving 'packages.openmediavault.org:http' (-5 - No address associated with hostname)
Get:74 http://packages.openmediavault.org stoneburner Release [11.8 kB]
Get:75 http://packages.openmediavault.org stoneburner/main i386 Packages [7109 B]
Ign http://packages.openmediavault.org stoneburner/main Translation-en
Get:76 http://ftp.fr.debian.org wheezy/main Translation-en [3846 kB]
Get:77 http://ftp.fr.debian.org wheezy-updates/main Sources [5515 B]
Get:78 http://ftp.fr.debian.org wheezy-updates/non-free Sources [929 B]
Get:79 http://ftp.fr.debian.org wheezy-updates/main i386 Packages [7048 B]
Get:80 http://ftp.fr.debian.org wheezy-updates/non-free i386 Packages [484 B]
Get:81 http://ftp.fr.debian.org wheezy-updates/main Translation-en [4879 B]
Get:82 http://ftp.fr.debian.org wheezy-updates/non-free Translation-en [496 B]
W: Failed to fetch http://http.debian.net/debian/…e/non-free/source/Sources 404 Not Found
W: Failed to fetch http://http.debian.net/debian/…main/binary-i386/Packages 404 Not Found [IP: 5.153.231.35 80]
W: Failed to fetch http://http.debian.net/debian/…trib/binary-i386/Packages 404 Not Found [IP: 5.153.231.35 80]
W: Failed to fetch http://http.debian.net/debian/…free/binary-i386/Packages 404 Not Found [IP: 5.153.231.35 80]
E: Some index files failed to download. They have been ignored, or old ones used instead.
I tried "Apt clean" from the Webgui but no result !
Thanks a lot.
Regards
cseb17