Refer https://askubuntu.com/questions/766491/failure-to-download-extra-data-files-with-ttf-mscorefonts-installer-on-ubuntu

Run this first, but you will need to continue, it fails:
$ sudo apt-get update && sudo apt-get install --reinstall ttf-mscorefonts-installer flashplugin-installer

Supplement with this:
$ wget http://ftp.de.debian.org/debian/pool/contrib/m/msttcorefonts/ttf-mscorefonts-installer_3.7_all.deb
$ sudo apt-get purge ttf-mscorefonts-installer -y
$ sudo apt install ./ttf-mscorefonts-installer_3.7_all.deb