Error "Unable to find user by SSO name" while accessing a Red Hat Support Case

Issue

• When accessing a Support Case or the Support Case List, the following error message is displayed:

 Error 404 Not Found Message: {"code":"404","message":"Unable to find user by SSO name"}

• Trying to open a support case via satellite 6 UI(Red Hat Access):

Error 404 Not Found Message: {"error":{"code":404,"message":"Unable to fetch attachment metadata","detailMessage":"Unable to find contact by SSO name"}}