Try to update the webproxy blacklist:
vyos@r4# run update webproxy blacklists proxy:x:13:13:proxy:/bin:/bin/sh proxy:x:13: % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 curl: (67) Access denied: 530 Unable to download [ftp://ftp.univ-tlse1.fr/pub/reseau/cache/squidguard_contrib/blacklists.tar.gz]! [edit] vyos@r4#
They start using Captcha for the white list before you can download/update ftp.univ-tlse1.fr
and after you pass the captcha, it works again:
vyos@r4# run update webproxy blacklists % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 27.5M 100 27.5M 0 0 6313k 0 0:00:04 0:00:04 --:--:-- 6314k Uncompressing blacklist..