Problem while downloading United nations corpus

Hi I wanted to download the data mentioned in WMT18 ( http://www.statmt.org/wmt18/translation-task.html) task for English - Russian translation. For that I needed to download the UN Corpus from https://cms.unov.org/UNCorpus/ . But unfortunately I am unable to extract and it is says decompression failed. How can I download UN data mentioned in papers for my task. I searched multiple ways but I am unble to extract and use the data. Please help
Thank you.

Hi,

For further enquiries, please contact gtext-support@unov.org

Maybe you should contact them directly?