500 Internal Server Error : Impossible to reach People/Customers area within Service Desks

On JIRA Service Desk, when accessing the Customers section, the sections doesn't load.

500 Internal Server Error

Browser Console reports an error similar to this one:

GET https://instance.atlassian.net/rest/servicedesk/1/pages/people/collaborators/DSD [HTTP/1.1 500 Internal Server Error 491 ms]

Fix / Workaround:
The fix will be released on Monday August 24th.
To have the fix applied on your instance before, get in touch with Cloud Support and please provide a timeframe for a 20 minutes restart.