Bnyro
That’s not an issue an update would solve, I assume you’re using the app with an account and the instance you use just has been down for some time?
Even if an instance is responding quick for some time, it’s not guaranteed it’s also stable and has enough capacity to handle all the traffic.
I’ve been talking about the case that you’re logged in with a Piped account, which makes your subscriptions and playlists become stored at Piped’s server.
Piped does more than just proxying at its backend, the only thing that you could really call to become proxied are thumbnails and video playback.
Press the three dot menu -> Settings -> Instances -> Select a different instance.
Which instance you choose is up to you, a list of them and their locations can be found at https://github.com/TeamPiped/Piped/wiki/Instances.
This has been fixed in https://github.com/libre-tube/LibreTube/pull/4736. (Not sure if you’re the person that submitted the issue or someone else did.)