Cozystack.io website
Be sure to download the extended version of Hugo from the GitHub releases page. The binary that was installed by your operating system package manager may (and most likely will) not work correctly.
wget https://github.com/gohugoio/hugo/releases/download/v0.122.0/hugo_extended_0.122.0_linux-amd64.tar.gz
tar -xzf hugo_extended_0.122.0_linux-amd64.tar.gz
chmod +x /usr/local/bin/hugohugo serve