Unauthorized error
When running the installable cloud application, the following
error occurs: Application Terminated. Unauthorized. Please contact the
application distributor for more information.

Cause:
This error occurs when the PowerServer Web APIs has been
configured to use an authentication framework (JWT, Azure AD, AWS
Cognito, etc) while the application is attempting to access the Web
API without having completed the authentication process.
Solution:
You can configure and implement the authentication in the
PowerServer Web APIs and the application according to this tutorial:
Authenticating your
apps.
If you have no plan to implement the authentication, you can set
the Auth Template option to Do not use auth service.