401 Unauthorized for reading contacts in chapter 2

I am pretty sure the permissions are set correctly, but I am getting 401 Unauthorized for reading contacts while read profile is working. Very beginner to Azure or MS Graph, so any insight would be appreciated! Thanks!

<img width="862" alt="Image" src="https://github.com/user-attachments/assets/75334106-5f0b-4e55-a248-0903e1c77209" />