I have been using Nextcloud for 6 months without any issues and now some files just vanished. Before the files disappeared, I didn’t do anything with the cloud, I wasn’t even home when files got lost. On the other hand, the server has as much disk space as it was before the files disappeared. It looks like the files exist but nextcloud did not see them. Does anyone know what could be the reason for the disappearance of files and is there a chance to regain access to them?