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This will bring you back to your JupyterHub Home, from which you will be able to Stop your server (red button) or connect back to it (blue button)
JupyterHub and ecinteractive Jupyter sessions
Since it is also possible to start Jupyter sessions with ecinteractive, you should avoid running two JupyterLabs at the same time with each tool. They run on the same platform using the same HOME filesystem, so you may run into unexpected behaviour or Jupyter cache or configuration corruption.