Saved Cubase elements 10.4 licence on dongle over Essential 4

I installed Cubase Elements 10.5 and saved the registration key on dongle where Cubase Essential 4 license was. Now essential 4’s license has disappeared. How do I get it back or open Essential 4 again? Or is there another way to open essential 4/

Simply open it. Have you even tried opening it, before posting?

Obvious and first thing I did. It shows and error and says no license… Tried rebooting, uninstalled and reloaded most current e-license Control Center… several times

Hi, did you manage to run your Cubase 4 ? My license is gone as well after upgrading to Cubase 10