If you are using RBAC on your AKS cluster you will probably see a screen like the one below when you try to access the Kubernetes Dashboard.
This is because you do not have access to the dashboard. Luckily its an easy fix.
In your bash windows type the following.
This will create a cluster role binding for the Kubernetes dashboard linked to the cluster role cluster-admin.
Now if you access the Kubernetes dashboard you will see all the errors are gone.
I hope this helps you. If you have any questions please reach out.