Notebook server won't spawn — 504 Gateway Timeout on nb.anaconda.com

I can log in to the Anaconda dashboard, but launching Jupyter Notebooks fails. The notebook server won’t start — it either shows a blank page or a Cloudflare 504 Gateway Timeout where nb.anaconda.com (Host) = Error, while Browser and Cloudflare both show Working.

Please (1) restart/clear my stuck notebook server pod, and (2) check whether my persistent volume is full — I believe a crash mid-session left it wedged. I also need to recover/download my notebook Moniepoint.ipynb; if the pod can’t be restarted, please retrieve the file from my persistent storage.