No Button to Install Service Desk in JIRA 8.5

Summary

In the Application section there is no button to install Service Desk in JIRA 8.5

Steps To Reproduce

1. Navigate to Administration Setting > Application > Versions & licenses

Expected Result

We should see a button a to install Service Desk

Actual Result

There is no Button

Workaround

1. Download the .obr file Download Service Desk
2. Use the "Upload an application" option to install ServiceDesk on JIRA