Angeluh

I'm having trouble going to another region, the necessary rom is already loaded in the game, but when I talk to the ship's npc, he says I don't have the rom, is this a bug or do I need to change something in the rom file? and I already won from the Unova league, so I think that's not the problem: p I'm sorry if something is wrong, English is not my language and I'm sorry if I'm posting in the wrong place :)