Hi,
Rise worked beautifully in the past and it is highly useful!
But yesterday I upgraded jupyterhub (everything current) now, jupyter_rise
does not work anymode. I only get a "blank page" with access denied.
I reinstalled jupyterlab_rise, but this did not help at all.

What could be the cause of this? How can I resolve this issue or at least analyze further?
Thank you!
Marc