Internal Server Error on Oauth Callback

I am using the zero-to-jupyterhub helm charts and recently upgraded to 0.8.0

I have been using the Google auth configuration without issue previously. Now, on redirect back from Google to /hub/oauth_callback, I get a “500 : Internal Server Error” warning.

Authentication seemed to continue working after the upgrade. Users already authenticated are able to continue using.

The only thing I can find in the logs that looks suspicious is “…SingleUserNotebookApp auth:465] Token stored in cookie may have expired”, but could be unrelated