Girls, I'm asking about the first feeding. When do you start giving ma…

Girls, I'm asking about the first feeding. When do you start giving mashed potatoes? I started my daughter at 6 months and introduced broccoli, cauliflower, and carrots. Today I gave her sweet potato. Her cheeks turned red an hour later. At first I thought maybe it was hot in the apartment, but no, I remembered that I had given her sweet potato puree). Does this mean I shouldn't give her sweet potato yet? And then how? After some time try again?