Kids vommiting after eating KFC (Eldorado Park)

We bought food on the 24/06/2024 at KFC Eldorado Park. After we ate, my child started advised me that his tummy is sore. A few minutes after that my other son complained about his tummy. I told them to lay down, and thought maybe they full thats why their tummies are sore. Round about past 12 morning hours, my one son stared vomiting, after that the other child started vomiting as well. I have not slept the whole night, both my sons were vomiting through out the morning hours. I am not sure what was in that food, but i am highly upset. I took the small one to the Dr, because he was not stopping, the whole chicken came out, The Dr advised me it must be the food, and explain to me how kids get sick. Please check your'ls chicken and salad, and make sure that people who are sick, must not come to work.because i litterally thought i will have to take my sons to the hospital, they are still not ok. I am very upset. We always buy at KFC Eldorado park, and this is the first time something like this is happening, I am very upset.