Yjs demo server (both http and wss) seem to be down.

[Mansehej]

Checklist

• Are you reporting a bug? Use github issues for bug reports and feature requests. For general questions, please use https://discuss.yjs.dev/
• Try to report your issue in the correct repository. Yjs consists of many modules. When in doubt, report it to https://github.com/yjs/yjs/issues/

Describe the bug
The server at https://demos.yjs.dev/ throws a Heroku application error.
The server at wss://demos.yjs.dev/ fails with a response code of 503.

To Reproduce
Steps to reproduce the behavior:

http server

1. Go to the Yjs demos homepage.
2. You will get an Application error from Heroku.

wss server

1. Create a demo application and have a yDoc.
2. Connect the yDoc to the yjs demos websocket server.
3. Try to connect to the websocket.

Expected behavior
The yjs demo website should work as expected and show different demos.
The yjs demos websocket server should connect and synchronize changes between clients.

Screenshots

[dmonad]

Closing this. The server might be down for a couple of hours when I'm working on it.