Jupyter Notebook Unable to Save Files on MacOS

I can not save changes to my Jupyter notebook on my new MacBook Air. When I try to do this, I get a “permission denied” message on my screen. The terminal reads the following output.

[I 09:15:04.752 NotebookApp] Saving file at /Documents/UMass/281/homework/Hw 2.ipynb
[W 09:15:04.760 NotebookApp] 403 PUT /api/contents/Documents/UMass/281/homework/Hw%202.ipynb (::1): Permission denied: Documents/UMass/281/homework/Hw 2.ipynb
[W 09:15:04.761 NotebookApp] Permission denied: Documents/UMass/281/homework/Hw 2.ipynb
[W 09:15:04.761 NotebookApp] 403 PUT /api/contents/Documents/UMass/281/homework/Hw%202.ipynb (::1) 12.970000ms referer=http://localhost:8888/notebooks/Documents/UMass/281/homework/Hw%202.ipynb

My first instinct was that there was an issue with write privileges on my file, but I double checked that and every user has the ability to write and read files.

Does this error sound familiar?

Thanks,
Leyna