Final result: The patch installer has failed to update the shared features. To determine the reason for failure, review the log files.
Exit code (Decimal): -568706566
Exit facility code: 1562
Exit error code: 14842
Exit message: Element not found. (Exception from HRESULT: 0x80070490)
Start time: .....
End time: .....
Requested action: Patch
Then, the first thing you can do is to check if there are any disks in the cluster that are offline. If this is the case, you need to bring the disks back online prior to trying again.
As a side note, for the recommended practice of patching clustered SQL Server instances you can read this article.