Найти ошибку в данном предложении "my mother won't let anybody to think ill of him"

Ошибка в местоимении "him". Должно быть "her". Получается так: "My mother won't let anybody to think ill of her".

Hello, Anny! 
So I recently watched this movie called Avatar and I'm in love with it! It's about a marine Jake Sully who goes on a planet Pandora to participate in a science program "Avatar". He and his brother were twins but the brother died so Jake had to go instead. On Pandora he meets a native woman Neytiri and falls in love with her. The movie is about making the right choises, about what it is to be human, about betrayal, about nature and our connection to it, it's about love. There are also battles and beautiful forests, flying creatures and the entire new language. Avatar is also a ton of fun, there are a lot of funny jokes. I'm telling you, Anny, you should definetely see it!
Text me back when you've finished watching it, I'd love to hear your opinion!
Love, Elen.

Today many people use internet but sometimes some people think that it isn't good for some persons like children.
Of course, it has some positive sides: firstly, they can find some useful information in internet to know more about world. Also children can meet there and have friends. They can speak with them about their live, emotions and plans and know that their friend listens him.
At other hand they can find something that will hurt them psychically as example pictures that contains gore, blood or other things. Also they can find there mad people who wants to hurt, rape or even murder them. At last, they can find some bad advices like call to use drugs, to drink  and alcohol etc.
Finally, I think that internet is good for children but only under parents' control