Install virtualmin is not possible !

After a apt-get update && apt-get upgrade with no problem
chmod +x

Installing extra dependencies for Debian 8 [ :heavy_check_mark: ]
Downloading apt.gpg [ERROR] Failed with error: 6
[ ✘ ]
[ERROR] Something went wrong. Exiting.
[ERROR] The last few log entries were:
Unpacking apt-transport-https ( …
Preparing to unpack …/ca-certificates_20141019+deb8u4_all.deb …
Unpacking ca-certificates (20141019+deb8u4) over (20141019) …
Processing triggers for man-db ( …
Setting up apt-transport-https ( …
Setting up ca-certificates (20141019+deb8u4) …
Updating certificates in /etc/ssl/certs… 46 added, 67 removed; done.
Processing triggers for ca-certificates (20141019+deb8u4) …
Updating certificates in /etc/ssl/certs… 0 added, 0 removed; done.
Running hooks in /etc/ca-certificates/update.d…done.
Installing extra dependencies for Debian 8: Success.
Spin pid is: 8986
Downloading apt.gpg: [2018-12-03 18:32:24 CET] [ERROR] Failed with error: 6
[2018-12-03 18:32:24 CET] [ERROR] Something went wrong. Exiting.
[2018-12-03 18:32:24 CET] [ERROR] The last few log entries were:


Hmm, I don’t believe I’ve seen that before, though some Googling suggests that error may be a DNS resolution issue.

What is the output of these commands:

cat /etc/resolv.conf host

root@srv01 ~]# cat /etc/resolv.conf
domain home
search home

root@srv01 ~]# host has address has address

I specify that it is a virtual machine installed from cloudmin!