Migrate to Authorization Extension v2
One of the major changes between versions 1 and 2 of the Authorization Extension is the removal of the Applications section. This section was removed to simplify its inherent complexity, such as when it was used to define a policy for access control. The desired approach for such use cases is to use rules.
Upgrade extension version
To upgrade the Authorization Extension, go to Auth0 Dashboard > Extensions, and select the Installed Extensions view.
On the Authorization Extension row, you'll see a link that will begin the upgrade process to the latest version.