simucube 1 stopped working

I have a Simucube 1 purchased in 2018. Until a week ago, I’ve never had any issues. I have no idea if it’s a problem with the controller or the motor. It tells me the e-stop button is pressed. Error ID3001.

Disconnected motor or encoder wiring?

I have checked the wiring and it seems to be fine, I have changed the e-stop button for a new one and the fault it gives me now is ID 440205

I have no knowledge of electronics, do I need to send it to a professional to repair it or what can I do?

Fault codes are here:

https://granitedevices.com/wiki/Fault_location

Thanks a lot, Mika. Can any electronics technician fix it with the fault code?
I’m asking this because I don’t have the knowledge to repair it.