Maria, thank you for your opinion. You haven't changed my mind about it being a typo but I certainly agree that Laurinha was trying to be helpful and she did a great job.
As for Laurinha's English, as you said yourself, how are we going to learn if errors and misspellings are not pointed out. She was kind enough to bring my Spanish error to my attention ( ¿¿Qué es "Hize"??) so I felt it would be ungrateful of me if I did not return the favor and help her with her English.