notebooks.firecloud.org refused to connect.

Hi Everyone, I'm a new user to Terra. I was trying to follow along the quickstart tutorials, specifically the T101-Notebooks-Quickstart copy. When I start up the workspace and go to the analyses page, I created a Jupyter notebook environment. It seems to have created it successfully but when I click on 'open' to try and edit/run it, I get an error for notebooks.firecloud.org refused to connect. It looks like the environment is running fine according to terra but I get a connection refusal and can't really do anything. Has anyone else experienced this error?