Permission Denied for Homework Assignment in Jupyter Notebook

I keep having this “Permission Denied” notice and the notebook is “not trusted”. Could anyone help me fix this problem. Thanks!

Hi @Yixuan_Jia

Many learners have told us that this workaround can help them get a new copy of assignment that has the permission to save work and submit work as usual. This is something you could try to keep moving on.

Raymond