FileBrowser funktioniert nicht

Link to the same cloud storage with multiple accounts, if you have more than one Dropbox account, for example. diese App allows you to access all your connections from the iOS Files app and other apps that use this as their document chooser, bringing network access to those apps.  Easily upload/download/copy files and folders from one location to another, and browse your content using a variety of built-in viewers. *** diese App's setup varies for every device, and the automatic wizards work super-well.  Use the built-in annotation tools for PDFs and images, or use the iOS annotation tools to add notes, drawings or highlight text. diese App securely stores your passwords in the iOS keychain and uses iOS encryption features to protect your local content.  View Microsoft Office, Apple Pages, Numbers, KeyNote, PDF, text files, source code, HTML, and many more using the built-in viewers.  Our diese App suite of apps are the first file management apps to support multiple tabs.  Use our built-in viewers or stream video to other apps.  Use your iPad or iPhone to connect to your home computers, network drives and cloud storage.  Protect local files using a password, TouchID or FaceID.  Stream movie files or listen to music, both with AirPlay™ and Chromecast support.  Launch an app to edit a network document in-place, such as Word or Pages or any of the Office and Mac suite.  Connect to your Mac or PC when away from home. diese App has many features that we would like to tell you about. Check out our website. You'll be amazed!  Browse your photos wherever they are stored and display them on your TV or projector using AirPlay or Chromecast.  Windows, Mac, Linux, Time Capsule, NAS drives, portable WiFi drives, SMB, Samba.  Use iPadOS split-screen mode to drag & drop between multiple windows.  Use a single tap to connect and browse to a favorite folder.  Easily flick through holiday snaps or use the built-in slideshow feature.