Problems with acme

Hello,

I have a problem with Traefik configuration. We used only docker containers(without Kubernetes) and want to use Let'sEncrypt.
Of course, all configurations we used were from Traefik documentation. We read all similar problem solutions on the internet, but still nothing.
Traefik logs included the error ```
The ACME resolver "le" is skipped from the resolvers list because: unable to get ACME account: permissions 660 for /data/acme.json are too open, please use 600

Of course we change the permissions to 600, but still nothing