We got some reports about the sentence on the display: NVRAM ERROR, This can happen after game code updates or at first installation.
To Clean the NVRAM you need to POWER ON you game with ENTER and ESCAPE button pressed for 15 seconds.
If this do not fix your issue please open a ticket and report it to us.
** This can fix another issue, the game at power on continue to cycle between the software version screen and the "Pedretti" logo **