I too am getting this error. I did some checking from inside the docker container and indeed the awk command isn't present. perhaps the new version is missing that in the build?
Did some more checking.
logged into the docker by using the command:
docker exec -it binhex-sabnzbdvpn bash
then used the command:
pacman -S awk
accepted the file setup and restarted the docker.
a more permanent fix would be to edit the startup script
build/root/install.sh
line 22:
pacman_packages="git python2 python2-pyopenssl python2-feedparser p7zip ipcalc awk"