Description:
There is an OSD cluster that can be upgraded, I stay on the 'Setting' tab, later the cluster is deleted, then I click the 'Update' button, I got a crashed page(see crashed.png).

How Reproducible:
100%

Steps to Reproduce:
1. Prepare an OSD cluster, and go to the setting tab.
2. Click 'Update' button.

Actual Result:
As description.

Expected Result:
The page is redirected to the cluster list page and get the message 'the cluster <cluster id> is not found '

Additional Info: