Home Assistant - Installation failed via repository

[donetdisturb]

Hi, I have a Home Assistant installation on RPI 3B+

Installation method
Home Assistant OS
Core
2026.2.1
Supervisor
2026.01.1
Operating System
17.0
Frontend
20260128.6

Until a few weeks ago I could install without any problems via the repository: https://github.com/Luligu/matterbridge-home-assistant-addon
Now, if I try to update or install from scratch this is the message:

"An unknown error occurred while trying to build the image for addon 246dd49f_matterbridge. Check supervisor logs for details (check with 'ha supervisor logs')"

Supervisor logs:

2026-02-09 13:18:19.910 INFO (MainThread) [supervisor.docker.addon] Starting build for 246dd49f/aarch64-addon-matterbridge:2026.2.1
2026-02-09 13:18:20.016 INFO (SyncWorker_3) [supervisor.docker.manager] Running command '['docker', 'buildx', 'build', '.', '--tag', '246dd49f/aarch64-addon-matterbridge:2026.2.1', '--file', 'Dockerfile', '--platform', 'linux/arm64', '--pull', '--label', 'io.hass.version=2026.2.1', '--label', 'io.hass.arch=aarch64', '--label', 'io.hass.type=addon', '--label', 'io.hass.name=Matterbridge Home Assistant Application', '--label', 'io.hass.description=Matterbridge Home Assistant Application', '--label', 'io.hass.url=https://github.com/Luligu/matterbridge-home-assistant-addon', '--build-arg', 'BUILD_FROM=ghcr.io/home-assistant/aarch64-base:latest', '--build-arg', 'BUILD_VERSION=2026.2.1', '--build-arg', 'BUILD_ARCH=aarch64']' on docker.io/library/docker:29.1.3-cli
2026-02-09 13:18:30.775 ERROR (MainThread) [supervisor.docker.addon] Can't build 246dd49f/aarch64-addon-matterbridge:2026.2.1: Docker build failed for 246dd49f/aarch64-addon-matterbridge:2026.2.1 (exit code 255). Build output:
exec /usr/local/bin/docker-entrypoint.sh: exec format error
2026-02-09 13:18:30.843 ERROR (MainThread) [supervisor.addons.addon] Could not build image for addon 246dd49f_matterbridge: Can't build 246dd49f/aarch64-addon-matterbridge:2026.2.1: Docker build failed for 246dd49f/aarch64-addon-matterbridge:2026.2.1 (exit code 255). Build output:
exec /usr/local/bin/docker-entrypoint.sh: exec format error

The entire system worked fine with the previous update. Any suggestions? Thank you!