Finally I found how to get rid of “Unsupported System - Docker CGroup Version” on a Raspberry PI 4: add systemd.unified_cgroup_hierarchy=false to the file /boot/cmdline.txt
This solution also solved my issue, i searched a lot of website and forums, never one solved this problem off my Armbian Bookworm os on installed Orange Pi 3 Lts.
Thanks mmz06
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