App broken?

Sorry that I cannot provide a more specific title, but the whole app seems to be broken. On the post tab I only get the error message "failed to load posts", on the profile tab it's "failed to load user profile", messages and notifications do not get loaded, no communities get listed, etc. Tried it with two accounts on different instances, neither account is banned, I can access everything in a browser iron other apps.

I installed the latest update after this error occurred, no changes.

Edit: app works again after de- and reinstallation, everything's back to normal.