I have a machine running Release: 2.2.13. When I try to check for updates I got this error:
Failed to execute command 'export LANG=C; apt-get update 2>&1': Ign file: Release.gpg Ign file: Release Ign file: Translation-en Ign file: Translation-pt Hit http://mirrors.fe.up.pt wheezy Release.gpg Get:1 http://mirrors.fe.up.pt wheezy-updates Release.gpg [1554 B] Hit http://packages.openmediavault.org stoneburner Release.gpg Ign http://dh2k.omv-extras.org stoneburner-miller Release.gpg Hit http://ppa.launchpad.net precise Release.gpg Hit http://mirrors.fe.up.pt wheezy Release Hit http://security.debian.org wheezy/updates Release.gpg Hit http://debian.yeasoft.net wheezy Release.gpg Hit http://packages.openmediavault.org stoneburner Release Hit http://ppa.launchpad.net precise Release Ign http://dh2k.omv-extras.org stoneburner-vpn Release.gpg Hit http://packages.omv-extras.org stoneburner Release.gpg Get:2 http://mirrors.fe.up.pt wheezy-updates Release [155 kB] Hit http://security.debian.org wheezy/updates Release Hit http://debian.yeasoft.net wheezy Release Hit http://dh2k.omv-extras.org stoneburner-miller Release Hit http://packages.omv-extras.org stoneburner Release Hit http://dh2k.omv-extras.org stoneburner-vpn Release Ign http://dh2k.omv-extras.org stoneburner-miller/main amd64 Packages/DiffIndex Ign http://dh2k.omv-extras.org stoneburner-vpn/main amd64 Packages/DiffIndex Hit http://packages.openmediavault.org stoneburner/main amd64 Packages Hit http://ppa.launchpad.net precise/main amd64 Packages Hit http://ppa.launchpad.net precise/main Translation-en Hit http://security.debian.org wheezy/updates/main Sources Hit http://mirrors.fe.up.pt wheezy/main Sources Hit http://security.debian.org wheezy/updates/contrib Sources Hit http://mirrors.fe.up.pt wheezy/non-free Sources Hit http://security.debian.org wheezy/updates/non-free Sources Hit http://mirrors.fe.up.pt wheezy/contrib Sources Hit http://mirrors.fe.up.pt wheezy/main amd64 Packages Hit http://security.debian.org wheezy/updates/main amd64 Packages Hit http://mirrors.fe.up.pt wheezy/non-free amd64 Packages Hit http://mirrors.fe.up.pt wheezy/contrib amd64 Packages Hit http://mirrors.fe.up.pt wheezy/contrib Translation-en Hit http://security.debian.org wheezy/updates/contrib amd64 Packages Hit http://mirrors.fe.up.pt wheezy/main Translation-en Hit http://security.debian.org wheezy/updates/non-free amd64 Packages Hit http://security.debian.org wheezy/updates/contrib Translation-en Ign http://packages.openmediavault.org stoneburner/main Translation-en Hit http://security.debian.org wheezy/updates/main Translation-en Ign http://packages.openmediavault.org stoneburner/main Translation-pt Hit http://mirrors.fe.up.pt wheezy/main Translation-pt Hit http://mirrors.fe.up.pt wheezy/non-free Translation-en Hit http://security.debian.org wheezy/updates/non-free Translation-en Ign https://dl.bintray.com wheezy Release.gpg Hit http://debian.yeasoft.net wheezy/main amd64 Packages Hit http://packages.omv-extras.org stoneburner/main amd64 Packages Get:3 http://mirrors.fe.up.pt wheezy-updates/main Sources [5505 B] Get:4 http://mirrors.fe.up.pt wheezy-updates/contrib Sources [14 B] Hit http://dh2k.omv-extras.org stoneburner-miller/main amd64 Packages Get:5 http://mirrors.fe.up.pt wheezy-updates/non-free Sources [929 B] Ign http://dh2k.omv-extras.org stoneburner-miller/main Translation-en Hit http://mirrors.fe.up.pt wheezy-updates/main amd64 Packages/DiffIndex Ign http://dh2k.omv-extras.org stoneburner-miller/main Translation-pt Ign http://debian.yeasoft.net wheezy/main Translation-en Get:6 http://mirrors.fe.up.pt wheezy-updates/contrib amd64 Packages [14 B] Hit http://mirrors.fe.up.pt wheezy-updates/non-free amd64 Packages/DiffIndex Ign http://packages.omv-extras.org stoneburner/main Translation-en Get:7 http://mirrors.fe.up.pt wheezy-updates/contrib Translation-en [14 B] Hit http://dh2k.omv-extras.org stoneburner-vpn/main amd64 Packages Ign http://debian.yeasoft.net wheezy/main Translation-pt Hit http://mirrors.fe.up.pt wheezy-updates/main Translation-en/DiffIndex Hit http://mirrors.fe.up.pt wheezy-updates/non-free Translation-en/DiffIndex Ign http://packages.omv-extras.org stoneburner/main Translation-pt Ign http://dh2k.omv-extras.org stoneburner-vpn/main Translation-en Ign http://dh2k.omv-extras.org stoneburner-vpn/main Translation-pt Ign https://dl.bintray.com wheezy Release Ign https://apt.syncthing.net syncthing Release.gpg Ign https://dl.bintray.com wheezy/main amd64 Packages/DiffIndex Ign https://apt.syncthing.net syncthing Release Ign https://apt.syncthing.net syncthing/release amd64 Packages/DiffIndex Ign https://dl.bintray.com wheezy/main Translation-en Ign https://dl.bintray.com wheezy/main Translation-pt Err https://dl.bintray.com wheezy/main amd64 Packages server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none Ign https://apt.syncthing.net syncthing/release Translation-en Ign https://apt.syncthing.net syncthing/release Translation-pt Err https://apt.syncthing.net syncthing/release amd64 Packages server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none Fetched 163 kB in 18s (8837 B/s) W: Failed to fetch https://dl.bintray.com/openmediavault-plugin-developers/stoneburner-sync/dists/wheezy/main/binary-amd64/Packages server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none W: Failed to fetch https://apt.syncthing.net/dists/syncthing/release/binary-amd64/Packages server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none E: Some index files failed to download. They have been ignored, or old ones used instead.
Can someone help me?