Error opening archieve

Connecting to repository http://download.ff.avast.com/mac/vpsmac
Downloading vpsmac.lat…
Downloading vpsmac.lat… (retry 1)
Downloading vpsmac.lat… (retry 2)
Package vpsmac is up to date.
Cannot perform HTTP request. [1c]
tar: install/update.sh: Not found in archive
tar: Error exit delayed from previous errors.

  • RAW=‘/Library/Application Support/Avast/files/Setup/filedir/vpsmac.raw’
  • ‘[’ ‘!’ -f ‘/Library/Application Support/Avast/files/Setup/filedir/vpsmac.raw’ ‘]’
  • VERSION=14010300
  • ‘[’ -z 14010300 ‘]’
  • FILES_DIR=‘/Library/Application Support/Avast/files’
  • ‘[’ -d ‘/Library/Application Support/Avast/files/defs/14010300’ ‘]’
  • echo ‘Version already installed?’
    Version already installed?
  • exit 1
    Connecting to repository http://download.ff.avast.com/mac/AAFM
    Downloading AAFM.lat…
    Fall back to full update.
    Downloading AAFM40005-8.0.inf…
    mv: rename AAFM.raw to /Library/Application Support/Avast/files/Setup/filedir/AAFM.raw: No such file or directory
    Cannot perform HTTP request. [1c]
    tar: Error opening archive: Failed to open ‘/Library/Application Support/Avast/files/Setup/filedir/AAFM.raw’: No such file or directory

Help me about this error.

Hello,
the error looks like you cannot reach na URL http://download.ff.avast.com/mac/vpsmac/vpsmac.lat to download a virus database update.This could happen for example if you have a proxy server.