Error (209040): Can't access JTAG chain

Hello,

I am trying to use the DE0-Nano board with Quartus Prime 18.0.0 (Linux) and I am experiencing problems when I try to load the .sof file to the board.
The loading always fails and the only output message from console is:

It's likely to be a problem related to the software itself or some bad configuration, because I remember I used the board a few years ago, but now it's impossible...

The "Load" LED beside the "Power" LED turns on when I try to upload the file, but always fails..

Do you have any helpful suggestion to solve this problem ?
Many thanks in advance.

Regards,
simozz