My systems settings are :
2 Player cabinet
Standalone
This is the correct settings for most of the games.
I tried with 1 Player cabinet but it doesn't change anything.
Furthermore the error is "Error on cartrigde", and when this happens,
there is no sub-menu for the Game-settings
like when there is no cartridge inserted.
If the problem was about the number of players, I would still see the game settings submenu in the settup page. It's not the case.