Oh thanks for your screenshot!
I think I fixed the issue now, so can you try again?

About the blank page issue, that's related to your local browser cache when we update the client. We have setup the cache settings correctly, but for some reasons, cache doesn't invalidate automatically. You can do hard-refresh (cmd + r on Mac, Alt + F5 on Windows) to remedy this issue for now. We'll find a way to fix this properly.