"canned acl" error when uploading images

DISCOURSE_USE_S3 is now false, and the container is rebuild, but it’s still showing the original error message.

I noticed this message appears in my admin dashboard.

The server is configured to upload files to S3, but there is no S3 CDN configured. This can lead to expensive S3 costs and slower site performance. See “Using Object Storage for Uploads” to learn more.

But I don’t want to upload files to S3. How do I disable it? Both DISCOURSE_USE_S3 and “enable s3 uploads” are disabled.