I have the initial parts of the installation complete, but when following the steps for XFCE to get a GUI I am hit with the following error:

wget https://kali.sh/xfce4.sh
--2019-09-04 17:41:13-- https://kali.sh/xfce4.sh
Resolving kali.sh (kali.sh)... 45.79.158.143
Connecting to kali.sh (kali.sh)|45.79.158.143|:443... connected.
GnuTLS: The TLS connection was non-properly terminated.
Unable to establish SSL connection.

Any thoughts?