The command '/bin/ash -o pipefail -c apk update' returned a non-zero code: 2

[Retroman445]

Installing fails with "The command '/bin/ash -o pipefail -c apk update' returned a non-zero code: 2"

Supervidor Logfile:
21-10-05 11:10:50 INFO (SyncWorker_3) [supervisor.docker.addon] Starting build for 6872d8d8/armv7-addon-local_vlc:18
21-10-05 11:10:59 ERROR (SyncWorker_3) [supervisor.docker.addon] Can't build 6872d8d8/armv7-addon-local_vlc:18: The command '/bin/ash -o pipefail -c apk update' returned a non-zero code: 2
21-10-05 11:10:59 ERROR (SyncWorker_3) [supervisor.docker.addon] Build log: 
Step 1/18 : ARG BUILD_FROM=hassioaddons/base:7.0.3
Step 2/18 : FROM $BUILD_FROM
 ---> a6b4abf955c9
Step 3/18 : ENV LANG C.UTF-8
 ---> Using cache
 ---> 2226c4195be7
Step 4/18 : ENV HOME=/home/vlc
 ---> Using cache
 ---> f22bd45746ed
Step 5/18 : RUN apk update
 ---> Running in 4bc54eb406a3
fetch https://dl-cdn.alpinelinux.org/alpine/v3.14/main/armv7/APKINDEX.tar.gz
ERROR: https://dl-cdn.alpinelinux.org/alpine/v3.14/main: temporary error (try again later)
WARNING: Ignoring https://dl-cdn.alpinelinux.org/alpine/v3.14/main: No such file or directory

fetch https://dl-cdn.alpinelinux.org/alpine/v3.14/community/armv7/APKINDEX.tar.gz
ERROR: https://dl-cdn.alpinelinux.org/alpine/v3.14/community: temporary error (try again later)
WARNING: Ignoring https://dl-cdn.alpinelinux.org/alpine/v3.14/community: No such file or directory

2 errors; 39 distinct packages available
Removing intermediate container 4bc54eb406a3

[Retroman445]

Ah, this is the culprit:
gliderlabs/docker-alpine#386 (comment)

[r0667002]

Did you manage to fix it? Because dpkg is not recognised by my installation.