OpenPanel Error 2 connecting to /tmp/redis/redis.sock. No such file or directory

after a reboot noticed that OpenPanel is not accessible on the demo https://demo.openpanel.org:2083/

docker ps -a shows redis service restarting, and docker logs -f openpanel_redis shows:

1:M 11 Mar 2026 20:13:32.485 # Failed opening Unix socket: bind: Permission denied

and OpenPanel is depending on redis so it too shows:

redis.exceptions.ConnectionError: Error 2 connecting to /tmp/redis/redis.sock. No such file or directory.

Workaround is:

mkdir -p /tmp/redis && chmod 777 /tmp/redis

then restart openpanel: docker restart openpanel