You run out of disk space in your Jupyter notebook which disallows you from starting the notebook runtime. When you try to start the runtime, it appears to be starting up as usual, but never fully starts up and eventually stops.
How to fix
To resolve the issue, you will need to delete data from the notebook runtime. To do so, you will first need to regain the ability to start the runtime by adjusting the hard disk space in the runtime configuration page.
NOTE: You will not be able to reduce the size afterwards. If you want to use a lower disk size runtime to reduce costs, you will need to generate a new runtime after deleting the files.
First, make sure you've selected Custom for the Profile.
Then increase the Disk size (GB) and press Update.
You should no longer have issues accessing your notebook runtime due to inadequate space. At this point you should be able to delete files and continue working.
If you delete files and still run into this issue, or if you increase the disk size and you are still unable to start the runtime, something else may be going on. Please contact us using one of the methods described here and we'll be happy to take a look!