I have been using Jupyter Notebook on VS Code for months now without problems but yesterday the files stopped working. When I try to run a cell, the loading star sign shows up (so it is running believe) but it's stuck on that.
I tried running the same file on a local Jupyter Notebook and it works perfectly. Its some issue with VS Code settings/extensions.
The line at the top says Jupyter Server: local (but is red for some reason) and Python: Not Started is displayed.
This issue was similar but it had a "no kernel" problem. Also, the answers in this post mention using the Command Palatte (Cmd+Shift+P) and selecting "Python: Select Interpreter to start Jupyter server".
However, this option is not shown for me. I tried following the steps regardless and it did not help.