Errors in the Skyline adapter logs appear similar to:
Internal Server error, cause unknown
Unable to get access token using the CSP refresh token provided. Retry Attempt: 1 HTTP Status code: 503 , Error description: Service UnavailableAria Operations 8.x
VMware Aria Operations Management Pack for VMware Skyline 3.x
The Skyline Advisor service is no longer generally available and not functional.
Remove the Skyline management pack by following these steps: Remove a solution from Aria Operations.
Recommendations on replacing Skyline functionality can be found here: VMware Skyline Frequently Asked Questions