Hide storage full notification

I’m using Nextcloud with Group folders. As I only want to use group folder and a common user account shouldn’t be able to use anthing but the group folders, I set the quota of the user storage to 0 => a user is not able to store a file in his directory - only in group folders => target achieved.

Unfortunately, a error is always shown on the files site, that the storage is full. Is it somehow possible to hide this notification?

ping. Nobody has an idea?