[cont-init.d] No such file or directory sh > upon clean docker build

I can't seem to start NPM when I do a clean docker build. Am I missing something here?
C:\Users\xx\xx>git clone https://github.com/jlesage/docker-nginx-proxy-manager.git npm
Cloning into 'npm'...
remote: Enumerating objects: 694, done.
remote: Counting objects: 100% (241/241), done.
remote: Compressing objects:  98% (145/147)
remote: Compressing objects: 100% (147/147), done.
remote: Total 694 (delta 150), reused 179 (delta 90), pack-reused 453
Resolving deltas: 100% (388/388), done.

C:\Users\xx\xx>cd npm

C:\Users\xx\xx\npm>docker build --no-cache -t test .
[+] Building 305.9s (15/15) FINISHED
 => [internal] load build definition from Dockerfile                                                                                                        0.0s
 => => transferring dockerfile: 15.28kB                                                                                                                     0.0s
 => [internal] load .dockerignore                                                                                                                           0.0s
 => => transferring context: 2B                                                                                                                             0.0s
 => [internal] load metadata for docker.io/jlesage/baseimage:alpine-3.15-v2.4.6                                                                             1.4s
 => [auth] jlesage/baseimage:pull token for registry-1.docker.io                                                                                            0.0s
 => [1/9] FROM docker.io/jlesage/baseimage:alpine-3.15-v2.4.6@sha256:7179c18833f9983122ba63c073c022581f5184f68c1bb628ac3b57eee69097fc                       0.0s
 => [internal] load build context                                                                                                                           0.1s
 => => transferring context: 20.88kB                                                                                                                        0.0s
 => CACHED [2/9] WORKDIR /tmp                                                                                                                               0.0s
 => [3/9] RUN     add-pkg --virtual build-dependencies         build-base         curl         &&     export CFLAGS="-Os -fomit-frame-pointer" &&     expo  4.2s
 => [4/9] RUN     add-pkg --virtual build-dependencies         build-base         curl         linux-headers         perl         pcre-dev         openss  99.5s
 => [5/9] RUN     add-pkg         curl         nodejs         python3         sqlite         openssl         apache2-utils         logrotate         bash   2.5s
 => [6/9] RUN     add-pkg --virtual build-dependencies         build-base         python3-dev         libffi-dev         openssl-dev         cargo         39.2s
 => [7/9] RUN     add-pkg --virtual build-dependencies         build-base         curl         patch         yarn         git         python2         py  145.1s
 => [8/9] RUN     add-pkg --virtual build-dependencies         go         upx         git         musl-dev         &&     mkdir /tmp/go &&     env GOPATH=  8.9s
 => [9/9] COPY rootfs/ /                                                                                                                                    0.1s
 => exporting to image                                                                                                                                      4.8s
 => => exporting layers                                                                                                                                     4.8s
 => => writing image sha256:d8c44bd178987906ca6ff4c1059dfe5e0f7fe40aebc84c3c7486c03afcb1d3a0                                                                0.0s
 => => naming to docker.io/library/test                                                                                                                     0.0s

Use 'docker scan' to run Snyk tests against images to find vulnerabilities and learn how to fix them

C:\Users\xx\xx\npm>docker run --rm -it test bash
bash-5.1# cd /
bash-5.1# ./init
[s6-init] making user provided files available at /var/run/s6/etc...exited 0.
[s6-init] ensuring user provided files have correct perms...exited 0.
[fix-attrs.d] applying ownership & permissions fixes...
[fix-attrs.d] done.
[cont-init.d] executing container initialization scripts...
[cont-init.d] 00-app-niceness.sh: executing...
[cont-init.d] 00-app-niceness.sh: exited 0.
[cont-init.d] 00-app-script.sh: executing...
[cont-init.d] 00-app-script.sh: exited 0.
[cont-init.d] 00-app-user-map.sh: executing...
[cont-init.d] 00-app-user-map.sh: exited 0.
[cont-init.d] 00-clean-logmonitor-states.sh: executing...
[cont-init.d] 00-clean-logmonitor-states.sh: exited 0.
[cont-init.d] 00-clean-tmp-dir.sh: executing...
[cont-init.d] 00-clean-tmp-dir.sh: exited 0.
[cont-init.d] 00-set-app-deps.sh: executing...
[cont-init.d] 00-set-app-deps.sh: exited 0.
[cont-init.d] 00-set-home.sh: executing...
[cont-init.d] 00-set-home.sh: exited 0.
[cont-init.d] 00-take-config-ownership.sh: executing...
[cont-init.d] 00-take-config-ownership.sh: exited 0.
[cont-init.d] 00-xdg-runtime-dir.sh: executing...
[cont-init.d] 00-xdg-runtime-dir.sh: exited 0.
[cont-init.d] 90-db-upgrade.sh: executing...
: No such file or directory sh
[cont-init.d] 90-db-upgrade.sh: exited 111.
[services.d] stopping services
[services.d] stopping s6-fdholderd...
[cont-finish.d] executing container finish scripts...
[cont-finish.d] done.
[s6-finish] syncing disks.
[s6-finish] sending all processes the TERM signal.
Hangup
bash-5.1#
edit: Docker version 20.10.12, build e91ed57 (on Windows 10)
jlesage / docker-nginx-proxy-manager

[cont-init.d] No such file or directory sh > upon clean docker build #239
