Unable to do Laundry Planner

Hello all.

I have a Samsung Dryer DV90T7440BT/SA. I can start it remotely from Smart Things app, but I couldn’t do a Laundry planner to schedule when to start it. When I click on Laundry planner, I have a message saying “Planner server data is null”

Does anyone have the same issue? How to get this work?