User can't access notebook on Jupyterhub

JupyterHub
1

Hello, I’m trying to share a public health dashboard built in a jupyter notebook using jupyterhub server. The server was set up on an aws EC2 instance using the instrcutions for The Littlest JupyterHub instructions. I was able to login as admin and set a mock user to test for user accessibility but while I can see and work with the notebooks, the mock user can’t.
My directory tree is
http://<instance_PublicIP>/user/<admin_user_name>/tree
But the mock user sees:
http://<instance_PublicIP>/user/<mock_user_name>/tree

I tried to configure the users’ server in jupyterhub_config.py Using:
c.Spawner.notebook_dir = '~/dashboard_project_directory'
But the result is the same. Below is the log.
How can I enable my users access to the notebook? What am I missing.

Here is the log for: jupyterhub /etc/jupyter/jupyterhub_config.py
> [I 2020-04-06 08:22:01.258 JupyterHub app:2120] Using Authenticator: jupyterhub.auth.PAMAuthenticator-1.0.0

    [I 2020-04-06 08:22:01.259 JupyterHub app:2120] Using Spawner: jupyterhub.spawner.LocalProcessSpawner-1.0.0
    [I 2020-04-06 08:22:01.260 JupyterHub app:1257] Loading cookie_secret from /home/jupyter-ronydev/jupyterhub_cookie_secret
    [I 2020-04-06 08:22:01.280 JupyterHub proxy:460] Generating new CONFIGPROXY_AUTH_TOKEN
    [W 2020-04-06 08:22:01.282 JupyterHub app:1532] No admin users, admin interface will be unavailable.
    [W 2020-04-06 08:22:01.283 JupyterHub app:1534] Add any administrative users to `c.Authenticator.admin_users` in config.
    [I 2020-04-06 08:22:01.283 JupyterHub app:1563] Not using whitelist. Any authenticated user will be allowed.
    [I 2020-04-06 08:22:01.324 JupyterHub app:2337] Hub API listening on http://127.0.0.1:8081/hub/
    [W 2020-04-06 08:22:01.326 JupyterHub proxy:642] Running JupyterHub without SSL.  I hope there is SSL termination happening somewhere else...
    [I 2020-04-06 08:22:01.327 JupyterHub proxy:645] Starting proxy @ http://:8000
    08:22:01.598 [ConfigProxy] info: Proxying http://*:8000 to (no default)
    08:22:01.603 [ConfigProxy] info: Proxy API at http://127.0.0.1:8001/api/routes
    [I 2020-04-06 08:22:02.340 JupyterHub proxy:319] Checking routes
    [I 2020-04-06 08:22:02.341 JupyterHub proxy:399] Adding default route for Hub: / => http://127.0.0.1:8081
    08:22:02.343 [ConfigProxy] info: 200 GET /api/routes
    08:22:02.347 [ConfigProxy] info: Adding route / -> http://127.0.0.1:8081
    [I 2020-04-06 08:22:02.349 JupyterHub app:2422] JupyterHub is now running at http://:8000
    08:22:02.350 [ConfigProxy] info: 201 POST /api/routes/
    08:27:02.352 [ConfigProxy] info: 200 GET /api/routes
    [I 2020-04-06 08:27:02.353 JupyterHub proxy:319] Checking routes