GB USB Smartcard 64M dead?

I have issues mit my GB USB Smartcard 64M. I am using ems-qart software under linux. The software doesnt find the card (screenshot attached)

This is the message in the terminal:

Failed to open device, libusb error: LIBUSB_ERROR_IO Failed to open device, libusb error: LIBUSB_ERROR_NO_DEVICE Could not find device, is it plugged in?

As I can see with lsusb, it is acutally there:

Bus 001 Device 009: ID 4670:9394 EMS Production Game Cube USB Memory Adaptor 64M

Starting ems-qart as root doesnt solve the issue. I checked the cable, and used three different ones… but always the same behaviour.

Any Ideas?