How to connect a new Nebula pad to the Ender 3 KE printer?

My Ender 3 printer’s Nebula pad has failed. I purchased a new Nebula smart kit. However, I was unable to connect the new Nebula pad to my printer. What are the possible solutions to this problem?

Is it the physical connection, serial to USB that is the problem or that the Nebula pad doesn’t recognise the printer?

In the list of available printers, the Nebula pad can be added to the highlighted ones, while the Ender 3 ke is missing.

It is necessary to somehow download the software required for working with the Ender 3 ke.