Nextcloud Notes funktioniert nicht

Once you have logged in to your server, all notes will be kept in sync between devices and also the web interface.  Note: Access to a Nextcloud server with the Notes app installed is required to use this app.  CloudNotes is a notes editor that syncs with the Notes app ( ) on your server.  Notes can be copied or exported to other apps or services in several formats.  You can create and delete notes directly on the device.  Notes can be organized in categories.  Edit as plain text or use markdown for rich formatting.  Optionally supports sync on startup.  Visit for more information.  If you have a sync client (optional) installed on your desktop computer all notes will be there too, and can be edited with any text editor.