I'm really sorry to answer now my own question, but my problem was the same as it was for the user CoOlokey -above this comment- and I wanted to help others if this can happen to them.
It was because in spanish the word emulation it is written as Emulación, with an accent that the program probably didn't recognize so I removed the ó. thank you very much for the replies I got some months ago, and sorry for being so late.