nems-build.sh failing at 055-check_mk

I'm trying to build from scratch but the build fails at the download of checkmk. see here:
Processing triggers for systemd (241-7~deb10u5) ...
Processing triggers for man-db (2.8.5-2) ...
Processing triggers for libc-bin (2.28-10) ...
W: http://deb.debian.org/debian/pool/main/g/gcc-8/libobjc4_8.3.0-6_amd64.deb: Automatically disabled Acquire::http::Pipeline-Depth due to incorrect response from server/proxy. (man 5 apt.conf)
--2021-01-21 04:16:58--  https://checkmk.com/support/1.6.0p17/check-mk-raw-1.6.0p17.cre.tar.gz
Resolving checkmk.com (checkmk.com)... 116.202.64.78, 2a01:4f8:fff0:36::78
Connecting to checkmk.com (checkmk.com)|116.202.64.78|:443... connected.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: https://download.checkmk.com/checkmk [following]
--2021-01-21 04:16:59--  https://download.checkmk.com/checkmk
Resolving download.checkmk.com (download.checkmk.com)... 116.202.64.85
Connecting to download.checkmk.com (download.checkmk.com)|116.202.64.85|:443... connected.
HTTP request sent, awaiting response... 401 Unauthorized

Username/Password Authentication Failed.

gzip: stdin: unexpected end of file
tar: Child returned status 1
tar: Error is not recoverable: exiting now
build/055-check_mk: line 56: cd: check-mk-raw-1.6.0p17.cre: No such file or directory
build/055-check_mk: line 84: ./configure: No such file or directory
build/055-check_mk: line 86: cd: livestatus: No such file or directory
make: *** No targets specified and no makefile found.  Stop.
make: *** No rule to make target 'install'.  Stop.
Waiting for socket to open...........................................................................................................................................................................................................................................
NEMSLinux / nems-admin

nems-build.sh failing at 055-check_mk #4
