Hi,
I seem to been having the same issue since yesterday. Are your severs down?
humann_databases --download chocophlan full /projects/0/gusr0506/goncalo/databases/HUMAnN --update-config yes
Creating subdirectory to install database: /projects/0/gusr0506/goncalo/databases/HUMAnN/chocophlan
Download URL: http://huttenhower.sph.harvard.edu/humann_data/chocophlan/full_chocophlan.v201901_v31.tar.gz
CRITICAL ERROR: Unable to download and extract from URL: http://huttenhower.sph.harvard.edu/humann_data/chocophlan/full_chocophlan.v201901_v31.tar.gz
I also noticed that when I visit the huttenhower lab page I get a invalid certificate warning:
Your connection is not private
Attackers might be trying to steal your information from huttenhower.sph.harvard.edu (for example, passwords, messages, or credit cards). Learn more
NET::ERR_CERT_DATE_INVALID