Error update/upgrade need advices

    • OMV 3.x
    • Error update/upgrade need advices

      Error during update omv3.x please help

      Source Code

      1. W: Failed to fetch http://debian.proxad.net/debian/dists/jessie-updates/InRelease Unable to find expected entry 'main/source/Sources' in Release file (Wrong sources.list entry or malformed file)
      2. W: Failed to fetch http://httpredir.debian.org/debian/dists/jessie-backports/main/binary-amd64/Packages 404 Not Found
      3. W: Failed to fetch http://httpredir.debian.org/debian/dists/jessie-backports/contrib/binary-amd64/Packages 404 Not Found
      4. W: Failed to fetch http://httpredir.debian.org/debian/dists/jessie-backports/non-free/binary-amd64/Packages 404 Not Found
      5. W: Failed to fetch https://downloads.plex.tv/repo/deb/dists/./public/main/binary-amd64/Packages Hash Sum mismatch
      6. E: Some index files failed to download. They have been ignored, or old ones used instead.
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      Omv 4.x
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